1 College of Landscape Architecture of Nanjing Forestry University, Nanjing, China; Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education, College of Forestry, Nanjing Forestry University, Nanjing, China; Forest and Evolutionary Genomics Laboratory and Centre for Structural and Functional Genomics, Biology Department, Concordia University, Montreal, Quebec, Canada; Quebec Centre for Biodiversity Sciences, Montreal, Quebec, Canada.
2 Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education, College of Forestry, Nanjing Forestry University, Nanjing, China.
3 Forest and Evolutionary Genomics Laboratory and Centre for Structural and Functional Genomics, Biology Department, Concordia University, Montreal, Quebec, Canada; Quebec Centre for Biodiversity Sciences, Montreal, Quebec, Canada.

Inter-simple sequence repeat data reveals high genetic diversity in wild populations of the narrowly distributed endemic Lilium regale in the Minjiang River Valley of China.

PLoS One. 2015;10(3):e0118831

Authors: Wu ZH, Shi J, Xi ML, Jiang FX, Deng MW, Dayanandan S

Abstract

Lilium regale E.H. Wilson is endemic to a narrow geographic area in the Minjiang River valley in southwestern China, and is considered an important germplasm for breeding commercially valuable lily varieties, due to its vigorous growth, resistance to diseases and tolerance for low moisture. We analyzed the genetic diversity of eight populations of L. regale sampled across the entire natural distribution range of the species using Inter-Simple Sequence Repeat markers. The genetic diversity (expected heterozygosity= 0.3356) was higher than those reported for other narrowly distributed endemic plants. The levels of inbreeding (Fst = 0.1897) were low, and most of the genetic variability was found to be within (80.91%) than amongpopulations (19.09%). An indirect estimate of historical levels of gene flow (Nm =1.0678) indicated high levels of gene flow among populations. The eight analyzed populations clustered into three genetically distinct groups. Based on these results, we recommend conservation of large populations representing these three genetically distinct groups.

PMID: 25799495 [PubMed - indexed for MEDLINE]