Development of 19 novel microsatellite markers of lily-of-the-valley (Convallaria, Asparagaceae) from transcriptome sequencing

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Abstract
The lily-of-the-valley Convallaria (Asparagaceae) consists of three herbaceous perennial species. The plants are commonly found in northern hemisphere, and are best-known for their ornamental and pharmaceutical value. In order to assess the genetic structure, diversity and demographic history of Convallaria species, 19 novel microsatellite markers were developed based on transcriptome data of C. keiskei. Polymorphism and cross-amplification of the markers were tested in three populations of C. keiskei and one population each of C. majalis and C. montana. The transferability rate in two species was both 89.5%. The average number of alleles detected per locus was 7.7, 3.3 and 2.7 in C. keiskei, C. majalis and C. montana, respectively, and the polymorphism information content correspondingly varied from 0.067 to 0.730, from 0.071 to 0.637 and from 0.195 to 0.680 at the population level. The observed and expected heterozygosity ranged from 0.000 to 1.000 and from 0.000 to 0.833, respectively. Seven of the 19 loci showed significant deviation from Hardy–Weinberg equilibrium. The availability of these markers will provide a useful molecular tool for further population genetics, phylogeographic and breeding studies of Convallaria species.
Funding Information
  • National Natural Science Foundation of China (31700321, 31600183, 31400194)
  • Zhejiang Province Public Welfare Technology Application Research Project (2017C32044)
  • Open Research Fund of Shanghai Key Laboratory of Plant Functional Genomics and Resources (PFGR201703)
  • Science Foundation of Zhejiang Sci-Tech University (14042010-Y, 15042170-Y)
  • 521 Distinguished Young Scientist Foundation of Zhejiang Sci-Tech University (11610132521509)

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