Comparative genetic diversity and structure of Rhus gall aphid Schlechtendalia chinensis and its host plant Rhus chinensis.

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2023-01-01

Zhumei Ren, Hongli He, Yang Zhang, Yujie Xu, Xu Su

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Abstract

Investigating the population genetic structure of parasites and their host plants can provide valuable insights into their coevolutionary processes. In this study, we assessed and compared the population genetic diversity and structure of 12 Rhus gall aphid (Schlechtendalia chinensis) populations and their respective host plant (Rhus chinensis) using amplified fragment length polymorphism (AFLP) markers. Analysis of molecular variance (AMOVA) revealed that both the aphid and its host plant exhibited higher genetic variance within populations than among them, indicating that their coevolutionary history may have produced analogous patterns of population genetic structure. Additionally, we considered alternative factors that could contribute to this outcome, such as intraspecific gene flow, hybridization, or environmental influences. Our analysis did not reveal a significant correlation between genetic and geographic distances of either the aphid or host plant populations, leading us to reject the isolation-by-distance model as a plausible explanation for the demographic histories of these two species.

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中国瓢虫与寄主植物中国瓢虫遗传多样性及结构比较。

研究寄生虫及其寄主植物的种群遗传结构可以为它们的共同进化过程提供有价值的见解。本研究利用扩增片段长度多态性(AFLP)对12个中国蚜虫(Rhus gall蚜虫，Schlechtendalia chinensis)居群及其寄主植物Rhus chinensis的遗传多样性和结构进行了分析比较。分子变异分析(AMOVA)表明，蚜虫和寄主植物在群体内的遗传变异高于群体间的遗传变异，表明它们的共同进化历史可能产生了相似的群体遗传结构模式。此外，我们还考虑了可能导致这一结果的其他因素，如种内基因流动、杂交或环境影响。我们的分析没有揭示蚜虫或寄主植物种群的遗传和地理距离之间的显著相关性，这导致我们拒绝将距离隔离模型作为这两个物种的人口统计学历史的合理解释。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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