The Role of Standing Variation in the Evolution of Weedines Traits in South Asian Weedy Rice (Oryza spp.).

ABSTRACT: Weedy rice (Oryza spp.) is a problematic weed of cultivated rice (O. sativa) around the world. Recent studies have established multiple independent evolutionary origins of weedy rice, raising questions about the traits and genes that are essential for the evolution of this weed. Among world regions, South Asia stands out due to the heterogeneity of its weedy rice populations, which can be traced to at least three origins: two through de-domestication from distinct cultivated rice varieties, and one from local wild rice (O. rufipogon/O. nivara). Here we examine five traits considered typical of or advantageous to weedy rice in weedy, cultivated and wild rice samples from South Asia. We establish that convergence among all three weed groups occurs for easy seed sh

SUBMITTER: Huang Z 

PROVIDER: S-EPMC6222575 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature