Cytogenetic and molecular analysis of an apomictic cassava hybrid and its progeny
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Data
2009-11
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Fundação de Pesquisas Científicas de Ribeirão Preto
Resumo
An interspecific hybrid between cassava and Manihot glaziovii acquired an apomixis gene from the parent M. glaziovii. This hybrid was exposed to open pollination during three subsequent generations. Seven sibs and the maternal progenitor of the fourth generation were genotyped using six microsatellite loci previously developed for cassava. All sibs were identical with each other and with their maternal progenitor. Sibs of selfed M. glaziovii proved to be identical when examined with these microsatellite loci. The chromosome complement of the apomictic clone was 2n = 38. We observed multi-embryonic aposporic embryo sacs.
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Palavras-chave
Interspecific hybrid, Aneuploidy, Apomixis, Wild species
Citação
NASSAR, N. M. A.; GOMES, P. T. C.; CHAIB, A. M.; BOMFIM, N. N.; BATISTA, R. C. D.; COLLEVATTI, R. G. Cytogenetic and molecular analysis of an apomictic cassava hybrid and its progeny. Genetics and Molecular Research, Ribeirão Preto, v. 8, n. 4, p. 1323-1330, Nov. 2009.