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Evidence for high dispersal ability and mito-nuclear discordance in the small brown planthopper, Laodelphax striatellus.


ABSTRACT: Understanding dispersal ability in pest species is critical for both theoretical aspects of evolutionary and population biology and from a practical standpoint, such as implementing effective forecasting systems. The small brown planthopper (SBPH), Laodelphax striatellus (Fallén), is an economically important pest, but few data exist on its dispersal ability. Here, we used mitochondrial and nuclear markers to elucidate the population genetic structure of SBPH and of the parasitic bacterium Wolbachia throughout temperate and subtropical China. Our results showed that the SBPH populations in China lack significant differences in genetic structure, suggesting extensive gene flow. Multilocus sequence typing revealed that Wolbachia infection was systematic and due to the same strain (wStri) within and across populations. However, the mtDNA haplogroups had a nonrandom distribution across the sampling localities, which correlated to latitudinal and climatic gradients. We explain this mito-nuclear discordance as a result of historical population recolonization or mitochondria adaptation to climate.

SUBMITTER: Sun JT 

PROVIDER: S-EPMC4309506 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature

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Evidence for high dispersal ability and mito-nuclear discordance in the small brown planthopper, Laodelphax striatellus.

Sun Jing-Tao JT   Wang Man-Man MM   Zhang Yan-Kai YK   Chapuis Marie-Pierre MP   Jiang Xin-Yu XY   Hu Gao G   Yang Xian-Ming XM   Ge Cheng C   Xue Xiao-Feng XF   Hong Xiao-Yue XY  

Scientific reports 20150127


Understanding dispersal ability in pest species is critical for both theoretical aspects of evolutionary and population biology and from a practical standpoint, such as implementing effective forecasting systems. The small brown planthopper (SBPH), Laodelphax striatellus (Fallén), is an economically important pest, but few data exist on its dispersal ability. Here, we used mitochondrial and nuclear markers to elucidate the population genetic structure of SBPH and of the parasitic bacterium Wolba  ...[more]

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