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Successful crosses between fungal-resistant wild species of Arachis (section Arachis) and Arachis hypogaea 74
Fávero,Alessandra Pereira; Santos,Rodrigo Furtado dos; Simpson,Charles E.; Valls,José Francisco Montenegro; Vello,Natal Antonio.
Peanut (Arachis hypogaea) is the fifth most produced oil crop worldwide. Besides lack of water, fungal diseases are the most limiting factors for the crop. Several species of Arachis are resistant to certain pests and diseases. This study aimed to successfully cross the A-genome with B-K-A genome wild species previously selected for fungal disease resistance, but that are still untested. We also aimed to polyplodize the amphihaploid chromosomes; cross the synthetic amphidiploids and A. hypogaea to introgress disease resistance genes into the cultivated peanut; and analyze pollen viability and morphological descriptors for all progenies and their parents. We selected 12 A-genome accessions as male parents and three B-genome species, one K-genome species,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Peanut; Interspecific hybrids; Polyploidization; Colchicine; Pollen viability.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000300353
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