Abstract
Sinadoxa corydalifolia is the only species of Sinadoxa (Adoxaceae) with the aberrant morphology. This species has become extremely endangered in the Qinghai-Tibetan Plateau. To provide a population-level genetic profile for investigation and conservation of genetic diversity of this species, we developed 10 new microsatellite loci for this species by the combining biotin capture method. About 31 microsatellites were screened from the library, 10 of the screened microsatellites are polymorphic. The number of alleles per locus in 18 individuals ranged from 3 to 11, expected heterozygosity and observed heterozygosity ranged from 0.3071 to 0.6243 and from 0.1675 to 0.4357, respectively. We further performed cross-priming tests of these primers in another species of the Adoxaceae: Adoxa moschatellina and found 9 of 10 successfully amplified the targeted sequences. These newly developed loci provide a useful tool to investigate the genetic diversity and design the conversation measures of S. corydalifolia and study the genetic divergence and the initial speciation pattern between it and the related species in the Adoxaceae.
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