Literature DB >> 15931507

Segregation patterns of isozyme loci and microsatellite markers show the diploidy of African yam Dioscorea rotundata (2n = 40).

Nora Scarcelli1, Ogoubi Daïnou, Clément Agbangla, Serge Tostain, Jean-Louis Pham.   

Abstract

The cultivated yam species Dioscorea rotundata (2n = 40) has been considered by most authors as a tetraploid species with a basic chromosome number of ten. In this paper, we analysed the segregation of two isozyme loci and six microsatellite markers in the progeny of a self-fertilised monoecious plant. For the eight markers, segregation patterns could be explained by only two genetic models: diploidy or tetraploidy with two null alleles. Given the nature of studied markers, the most parsimonious hypothesis was that the parental plant was diploid. These results, data from a diversity survey and results of other authors led to the conclusion that D. rotundata is a diploid species.

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Year:  2005        PMID： 15931507     DOI： 10.1007/s00122-005-2003-y

Source DB:  PubMed          Journal:  Theor Appl Genet        ISSN： 0040-5752            Impact factor:   5.699


  10 in total

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Review 3.  Microsatellite null alleles in parentage analysis.

Authors:  E E Dakin; J C Avise
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Journal:  J Hered       Date:  2004 Mar-Apr       Impact factor: 2.645

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  10 in total
  10 in total

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Journal:  Genetica       Date:  2011-10       Impact factor: 1.082

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Journal:  BMC Biol       Date:  2017-09-19       Impact factor: 7.431

7.  Paternity Assignment in White Guinea Yam (Dioscorea Rotundata) Half-Sib Progenies from Polycross Mating Design Using SNP Markers.

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9.  Molecular basis of African yam domestication: analyses of selection point to root development, starch biosynthesis, and photosynthesis related genes.

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  10 in total

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