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Title: Evidence of apomixis in cassava (Manihot esculenta Crantz)
Authors: Nassar, Nagib M.A.
Vieira, Marco André R.
Vieira, Clibas
Gratapaglia, Dario
Issue Date: 1998
Publisher: Sociedade Brasileira de Genética
Citation: Genet. Mol. Biol.,v.21,n.4,p.-,1998
Abstract: Apomixis maintains heterosis and avoids transmission of systemic pathogens which accompany vegetative propagation of cassava. An embryonic study of cleared ovules of two cassava clones in toto showed them to be of aposporic nature. Cytogenetic analysis of the two clones revealed an aneuploid structure (2n + 1) in apomictic individuals, whereas it was 2n in the sexually reproduced plants.
A Apomixia mantém a heterose e evita a transmissão de patógenos sistêmicos que acompanham a propagação vegetativa da mandioca. Um estudo embriônico de ovos clareados de dois clones de mandioca in toto mostrou que eles são de natureza apospórica. A análise citogenética dos 2 clones revelou uma estrutura aneuploide (2n + 1) em indivíduos apomíticos, ao passo que era 2n em plantas reproduzidas sexualmente.
DOI: https://dx.doi.org/10.1590/S1415-47571998000400020
Appears in Collections:Uso interno - em processamento

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