Chromosome number in South American species of

L. R. SCRIVANTI; I. CAPONIO; A. M. ANTON; G.A. NORRMANN

PLANT BIOLOGY

WILEY-BLACKWELL PUBLISHING, INC

Año: 2010 vol. 12 p. 910 - 916

1435-8603

Mitotic chromosome number of 14 taxa of Bothriochloa native to Argentina, Brazil and Uruguay were surveyed. Chromosome numbers of B. eurylemma, B. meridional- is and B. velutina are reported for the first time, with 2n = 6x = 60, and this ploidy level is the most common among the studied taxa. In addition, new cytotypes were found for B. alta (2n = 60), B. barbinodis (2n = 60), B. exaristata (2n = 80), B. lag- uroides var. torreyana (2n = 80), B. longipaniculata (2n = 60 and 80), B. perforataBothriochloa native to Argentina, Brazil and Uruguay were surveyed. Chromosome numbers of B. eurylemma, B. meridional- is and B. velutina are reported for the first time, with 2n = 6x = 60, and this ploidy level is the most common among the studied taxa. In addition, new cytotypes were found for B. alta (2n = 60), B. barbinodis (2n = 60), B. exaristata (2n = 80), B. lag- uroides var. torreyana (2n = 80), B. longipaniculata (2n = 60 and 80), B. perforataB. eurylemma, B. meridional- is and B. velutina are reported for the first time, with 2n = 6x = 60, and this ploidy level is the most common among the studied taxa. In addition, new cytotypes were found for B. alta (2n = 60), B. barbinodis (2n = 60), B. exaristata (2n = 80), B. lag- uroides var. torreyana (2n = 80), B. longipaniculata (2n = 60 and 80), B. perforataand B. velutina are reported for the first time, with 2n = 6x = 60, and this ploidy level is the most common among the studied taxa. In addition, new cytotypes were found for B. alta (2n = 60), B. barbinodis (2n = 60), B. exaristata (2n = 80), B. lag- uroides var. torreyana (2n = 80), B. longipaniculata (2n = 60 and 80), B. perforataB. alta (2n = 60), B. barbinodis (2n = 60), B. exaristata (2n = 80), B. lag- uroides var. torreyana (2n = 80), B. longipaniculata (2n = 60 and 80), B. perforatavar. torreyana (2n = 80), B. longipaniculata (2n = 60 and 80), B. perforata (2n = 60) and B. springfieldii (2n = 60). These numbers differ from those reported in the literature.B. springfieldii (2n = 60). These numbers differ from those reported in the literature.