Abstract
Anoectochilus emeiensis K. Y. Lang, together with other Anoectochilus species, has long been used as the main source of many traditional Chinese medicines. Owing to the shortcomings of molecular markers, the study of the genetic diversity and medicinal component synthesis mechanism of the endemic Anoectochilus species has been delayed. In this study, I carried out a transcriptome analysis of A. emeiensis. A total of 78,381 unigenes were assembled from 64.2 million reads, and 47,541 (60.65%) unigenes were matched to known proteins in the public databases. Then, 9284 expressed sequence tag-derived simple sequence repeats (EST-SSRs) were identified, and the frequency of SSRs in the A. emeiensis transcriptome was 9.88%. Trinucleotide repeats (3699, 39.84%) were the most common type, followed by dinucleotide (3251, 35.02%) and mononucleotide (1750, 18.85%) repeats. Based on the SSR sequence, 6683 primer pairs were successfully designed, 40 primer pairs were randomly selected, and 10 primer pairs were identified as polymorphic loci from 186 individuals of A. emeiensis. The EST-SSR markers examined in this study will be informative for future population genetic studies of A. emeiensis.
Funder
Natural Science Foundation of Sichuan Province
Basic Scientific Research Programs Foundation of Sichuan Province
Publisher
Public Library of Science (PLoS)
Reference42 articles.
1. Anoectochilus roxburghii: A review of its phytochemistry, pharmacology, and clinical applications;SY Ye;J Ethnopharmacol,2017
2. Chromosome karyotype analysis of Anoectochilus roxburghii;YJ Zeng;J Fujian Normal Univ (Natural Science),2001
3. Estimation of genome size of Anoectochilus roxburghii by flow cytometry analysis;H Lin;J. Fujian Agric For Univ (Natural Science),2020
4. Spatial and temporal patterns of neutral and adaptive genetic variation in the endangered African wild dog (Lycaon pictus);CD Marsden;Mol. Ecol,2012