ECHENIQUE Carmen Viviana
congresos y reuniones científicas
Discovery and functional categorisation of expressed sequence tags from flowers of Eragrostis curvula genotypes showing different ploidy levels and reproductive modes
VIVIANA ECHENIQUE; SILVINA FELITTI; PANIEGO N; MARTELOTTO L; PESSINO S; ZANAZZI, D.; P FERNÁNDEZ; MARINA DÍAZ; PABLO POLCI; GERMÁN SPANGENBERG
Workshop; Molecular breeding for the genetic improvement of forage crops and turf. XX IGC 2005. Aberystwyth Satellite Workshop, 3rd ? 7th July, 2005; 2005
Molec Breedin Soc. IGER
Introduction Two novel genotypes of weeping lovegrass (Eragrostis curvula) - a dihaploid strain obtained in vitro from an apomictic cultivar and a tetraploid plant derived from the dihaploid after chromosome duplication ? have recently been developed. These materials represent an excellent system for the identification, through transcriptional profiling, of genes involved in diplospory and/or ploidy level gene regulation. The aim of this work was the discovery and functional classification of expressed sequence tags (ESTs) from immature inflorescences of the apomictic E. curvula cultivar Tanganyika (2n=4x=40), a dihaploid sexual strain derived from it (2n=2x=20) and a tetraploid sexual strain (2n=4x=40) obtained by colchicine duplication of the dihaploid.