15
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      Nonindependent Domestication of the Two Rice Subspecies,Oryza sativassp.indicaand ssp.japonica, Demonstrated by Multilocus Microsatellites

      ,
      Genetics
      Genetics Society of America

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          The origins of the Asian cultivated rice Oryza sativa from its wild ancestor O. rufipogon have been debated for decades. The question mainly concerns whether it originated monophyletically or polyphyletically. To shed light on the origins and demographic history of rice domestication, we genotyped a total of 92 individual plants from the two O. sativa subspecies and O. rufipogon for 60 microsatellites. An approximate Bayesian method was applied to estimate demographic parameters for O. rufipogon vs. O. sativa ssp. indica and O. rufipogon vs. O. sativa ssp. japonica. We showed that the japonica subspecies suffered a more severe bottleneck than the indica subspecies and thus a greater loss of genetic variation during its domestication. Across microsatellite loci there is a significant positive correlation in the reduction of genetic diversity between the two subspecies. The results suggest that completely independent domestication of indica and japonica subspecies may not explain our data and that there is at least partial sharing of their ancestral populations and/or recent gene flow between them.

          Related collections

          Most cited references34

          • Record: found
          • Abstract: not found
          • Article: not found

          TreeView: an application to display phylogenetic trees on personal computers.

          R D Page (1996)
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            The effects of artificial selection on the maize genome.

            Domestication promotes rapid phenotypic evolution through artificial selection. We investigated the genetic history by which the wild grass teosinte (Zea mays ssp. parviglumis) was domesticated into modern maize (Z. mays ssp. mays). Analysis of single-nucleotide polymorphisms in 774 genes indicates that 2 to 4% of these genes experienced artificial selection. The remaining genes retain evidence of a population bottleneck associated with domestication. Candidate selected genes with putative function in plant growth are clustered near quantitative trait loci that contribute to phenotypic differences between maize and teosinte. If we assume that our sample of genes is representative, approximately 1200 genes throughout the maize genome have been affected by artificial selection.
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Population growth of human Y chromosomes: a study of Y chromosome microsatellites

                Bookmark

                Author and article information

                Journal
                Genetics
                Genetics
                Genetics Society of America
                0016-6731
                1943-2631
                June 16 2008
                June 2008
                June 2008
                May 27 2008
                : 179
                : 2
                : 965-976
                Article
                10.1534/genetics.106.068072
                2429889
                18505887
                38b4847b-314d-4368-89f6-ff8acd94d7cd
                © 2008
                History

                Comments

                Comment on this article