Range-wide genetic diversity in natural populations of Larix principis-rupprechtii Mayr

Prince Rupprecht’s larch ( Larix principis - rupprechtii Mayr.), a deciduous conifer, widely grows in middle and high elevations of Northern China. Its natural distribution has sharply decreased and has become fragmented, which may have resulted in the loss of genetic variation. In this study, ten n...

Full description

Saved in:
Bibliographic Details
Published in:Journal of forestry research 2021-02, Vol.32 (1), p.319-327
Main Authors: Di, Xiaoyan, Meng, Xiangxiang, Wang, Mengben
Format: Article
Language:English
Subjects:
Amplified fragment length polymorphism
Biological diversity
Biomedical and Life Sciences
Differentiation
Elevation
Forestry
Gene flow
Genetic aspects
Genetic distance
Genetic diversity
Genetic research
Larix principis-rupprechtii
Life Sciences
Mathematical analysis
Natural populations
Original Paper
Polymorphism
Population differentiation
Population genetics
Population studies
Populations
Species
Species diversity
Structural analysis
Variance analysis
Wildlife conservation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Prince Rupprecht’s larch ( Larix principis - rupprechtii Mayr.), a deciduous conifer, widely grows in middle and high elevations of Northern China. Its natural distribution has sharply decreased and has become fragmented, which may have resulted in the loss of genetic variation. In this study, ten natural populations across the entire range of this species were analyzed using amplified fragment length polymorphism markers. A total of 309 loci were detected from 225 individuals of these populations, of which 261 (84.5%) were polymorphic. At the species level, the genetic diversity was high (average of the Nei’s genetic diversity H e  = 0.2602, and Shannon’s information index I  = 0.3967). The results of molecular variance analysis showed that 90.71% of the genetic diversity occurred within populations. The genetic differentiation among populations was moderate as a whole ( F ST  = 0.0929, G ST  = 0.1510), which is consistent with the moderate level of gene flow among populations ( N m  = 2.8116). Based on the unweighted pair group method with arithmetic mean and STRUCTURE analysis, these populations were grouped into three genetically distinct clusters. The degree of inter-population differentiation ( G ST  = 0.1338) for the south group was larger than that for the north group ( G ST  = 0.0915). There was a significant correlation between genetic distance and geographic distance across the species range ( r  = 0.316, P  
ISSN:1007-662X
1993-0607
DOI:10.1007/s11676-019-01085-7