Genetic diversity and population structure of the endangered basal angiosperm Brasenia schreberi (Cabombaceae) in China.

ABSTRACT: Brasenia schreberi J.F. Gmelin (Cabombaceae), an aquatic herb that occurs in fragmented locations in China, is rare and endangered. Understanding its genetic diversity and structure is crucial for its conservation and management. In this study, 12 microsatellite markers were used to estimate the genetic diversity and variation in 21 populations of B. schreberi in China. A total of 61 alleles were found; assessment of allelic richness (Ar = 1.92) and observed and expected heterozygosity (H_O = 0.200, H_E = 0.256) suggest lower genetic diversity compared to some endangered species, and higher variation was observed within populations (58.68%) rather than among populations (41.32%). No significant correlation between geographical and gene

SUBMITTER: Li ZZ 

PROVIDER: S-EPMC6047506 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature