Introgression from cultivated rice alters genetic structures of wild relative populations: implications for in situ conservation.

ABSTRACT: Maintaining genetic integrity is essential for in situ and ex situ conservation of crop wild relative (CWR) species. However, introgression of crop alleles into CWR species/populations may change their genetic structure and diversity, resulting in more invasive weeds or, in contrast, the extinction of endangered populations. To determine crop-wild introgression and its consequences, we examined the genetic structure and diversity of six wild rice (Oryza rufipogon) populations under in situ conservation in China. Thirty-four simple sequence repeat (SSR) and 34 insertion/deletion markers were used to genotype the wild rice populations and two sets of rice cultivars (O. sativa), corresponding to the two types of molecular markers. Shared alleles and STRUCTURE analyses suggested a variable lev

SUBMITTER: Jin X 

PROVIDER: S-EPMC5751058 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature