In:
Insect Science, Wiley, Vol. 20, No. 5 ( 2013-10), p. 643-654
Kurzfassung:
The Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), is an infamous invasive species worldwide that aggressively attacks potato and other Solanaceae crops. CPB was first found in China in 1993 and has since spread across 2.77 × 10 5 km 2 in Xinjiang Uygur Autonomous Region. To better understand genetic variation and migration patterns, we used seven polymorphic microsatellite loci to elucidate the genetic relationships and gene flow among 10 CPB populations across Xinjiang. (i) Overall low levels of genetic diversity were detected on the entire population in Xinjiang but most of the diversity was retained among populations during invasion. (ii) The mean pairwise F ST was low (0.071 ± 0.043) among populations. The genetic differentiation was little (pairwise F ST 0.038 ± 0.016) between the five interior populations (Wusu, Urumqi, Jimsar, Qitai and Mulei) and Tacheng population. The six populations might come from the same genetic group via Bayesian clustering and were closely related on a neighbor‐joining tree. Combining the history data, the five interior populations may have originated from Tacheng. (iii) Gene flow was frequent, especially among the five interior populations. Individuals from the interior populations could be assigned to Tacheng at higher probabilities (means 0.518 ± 0.127) than vice versa (means 0.328 ± 0.074), suggesting that the beetle population has spread from the border to the interior in Xinjiang.
Materialart:
Online-Ressource
ISSN:
1672-9609
,
1744-7917
DOI:
10.1111/ins.2013.20.issue-5
DOI:
10.1111/j.1744-7917.2012.01565.x
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2013
ZDB Id:
2179775-4
SSG:
12
