Abstract：
BACKGROUND:Populations of herbivorous insects may become genetically differentiated because of local adaptation to different hosts and climates as well as historical processes, and further genetic divergence may occur following the development of reproductive isolation among populations. Here we investigate the population genetic structure of the orchard pest peach fruit moth (PFM) Carposina sasakii (Lepidoptera: Carposinidae) in China, which shows distinct biological differences when characterized from different host plants. Genetic diversity and genetic structure were assessed among populations from seven plant hosts and nine regions using 19 microsatellite loci and a mitochondrial sequence. RESULTS:Strong genetic differentiation was found among geographical populations representing distinct geographical regions, but not in host-associated populations collected from the same area. Mantel tests based on microsatellite loci indicated an association between genetic differentiation and geographical distance, and to a lesser extent environmental differentiation. Approximate Bayesian Computation analyses supported the scenario that PFM likely originated from a southern area and dispersed northwards before the last glacial maximum during the Quaternary. CONCLUSIONS:Our analyses suggested a strong impact of geographical barriers and historical events rather than host plants on the genetic structure of the PFM; however, uncharacterized environmental factors and host plants may also play a role. Studies on adaptive shifts in this moth should take into account geographical and historical factors.
journal_name
BMC Evol Bioljournal_title
BMC evolutionary biologyauthors
Wang YZ,Li BY,Hoffmann AA,Cao LJ,Gong YJ,Song W,Zhu JY,Wei SJdoi
10.1186/s12862-017-1116-7subject
Has Abstractpub_date
2017-12-20 00:00:00pages
265issue
1issn
1471-2148pii
10.1186/s12862-017-1116-7journal_volume
17pub_type
杂志文章abstract：BACKGROUND:Many species of social insects have large-scale mating and dispersal flights and their populations are therefore often relatively homogenous. In contrast, dispersal on the wing appears to be uncommon in most species of the ant genus Cardiocondyla, because its males are wingless and the winged queens mate in ...
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pub_type： 杂志文章
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journal_title：BMC evolutionary biology
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journal_title：BMC evolutionary biology
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journal_title：BMC evolutionary biology
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journal_title：BMC evolutionary biology
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pub_type： 杂志文章
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更新日期：2006-11-15 00:00:00
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pub_type： 杂志文章
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更新日期：2014-11-25 00:00:00
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journal_title：BMC evolutionary biology
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journal_title：BMC evolutionary biology
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journal_title：BMC evolutionary biology
pub_type： 杂志文章
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journal_title：BMC evolutionary biology
pub_type： 杂志文章
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