Open AccessGenome-wide developed microsatellites reveal a weak population differentiation in the hoverfly Eupeodes corollae (Diptera: Syrphidae) across China
Author(s) -
Mengjia Liu,
Xiaoqiang Wang,
Linlin Ma,
LiJun Cao,
Hongling Liu,
De-Qiang Pu,
ShuJun Wei
Publication year - 2019
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0215888
Subject(s) - biology , microsatellite , locus (genetics) , population , genetics , gene flow , genetic structure , population genetics , allele , genetic variation , evolutionary biology , gene , demography , sociology
The hoverfly, Eupeodes corollae , is a worldwide natural enemy of aphids and a plant pollinator. To provide insights into the biology of this species, we examined its population genetic structure by obtaining 1.15-GB random genomic sequences using next-generation sequencing and developing genome-wide microsatellite markers. A total of 79,138 microsatellite loci were initially isolated from the genomic sequences; after strict selection and further testing of 40 primer pairs in eight individuals, 24 polymorphic microsatellites with high amplification rates were developed. These microsatellites were used to examine the population genetic structure of 96 individuals from four field populations collected across southern to northern China. The number of alleles per locus ranged from 5 to 13 with an average of 8.75; the observed and expected heterozygosity varied from 0.235 to 0.768 and from 0.333 to 0.785, respectively. Population genetic structure analysis showed weak genetic differentiation among the four geographical populations of E . corollae , suggesting a high rate of gene flow reflecting likely widespread migration of E . corollae in China.