CERZOS   05458
CENTRO DE RECURSOS NATURALES RENOVABLES DE LA ZONA SEMIARIDA
Unidad Ejecutora - UE
artículos
Título:
Natural hybrids between cultivated and wild sunflowers in Argentina
Autor/es:
S. URETA, M. CANTAMUTTO, A. CARRERA, C. DELUCCHI AND M: POVERENE
Revista:
GENETIC RESOURCES AND CROP EVOLUTION
Editorial:
Springer
Referencias:
Año: 2008 vol. 55 p. 1267 - 1277
ISSN:
0925-9864
Resumen:
Abstract Two introduced wild species Helianthus
annuus L. and H. petiolaris Nutt. have become
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
annuus L. and H. petiolaris Nutt. have become
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
annuus L. and H. petiolaris Nutt. have become
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
annuus L. and H. petiolaris Nutt. have become
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
Two introduced wild species Helianthus
annuus L. and H. petiolaris Nutt. have become
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
L. and H. petiolaris Nutt. have become
widespread in central Argentina and overlap the
sunflower crop region. Intermediate off-type plants
between the wild and cultivated species are often
found, which is of concern because of the recent
release of imidazolinone resistant varieties and the
likely use of genetically modified sunflower cultivars.
The progeny of 33 off-type plants obtained from 14
representative sites of the diffusion area were studied
to confirm hybrid origin. Germination, survival,
morphological traits and days to flowering confirmed
hybridization between crop and both wild species,
when compared to eight accessions of typical wild
plants. Some progenies were presumably cropwild
H. annuus hybrids, some originated from the cross of
cultivated plants and H. petiolaris, and two were the
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
cultivated plants and H. petiolaris, and two were the
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
cultivated plants and H. petiolaris, and two were the
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
cultivated plants and H. petiolaris, and two were the
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
hybrids, some originated from the cross of
cultivated plants and H. petiolaris, and two were the
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.
H. petiolaris, and two were the
advanced generation of a cultivated hybrid. Hence,
morphological traits are a good clue for the identification
of spontaneous hybrid plants at field. The
results indicate that cropwild hybridization and
introgression occur at various places in central
Argentina. This fact may represent a way to herbicide
resistance escape and future transgene escape if GM
sunflower cultivars are released for commercial use.