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线粒体DNA的超变控制区域中的多态形态差异使BPH种群区分开来

Rashi Anand^1,2, S Priyokumar Singh³, Nihar Sahu⁴

¹Plant-Insect Interaction Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, India.

Frontiers in insect science

|March 12, 2024

概括

来自棕色植物 (BPH) 线粒体控制区域和核基因组的新标记揭示了高遗传多样性. 这有助于区分BPH种群,以制定有效的害虫防治策略.

科学领域:

农业昆虫学农业昆虫学
分子生态学分子生态学
人口遗传学人口遗传学

背景情况:

棕色植物 (BPH), *Nilaparvata lugens*,是印度的主要水害虫,由于其迁徙性质,造成了大量的作物损失.
了解BPH群体动态对于制定有效的管理策略至关重要,但评估多样性的可靠标志物有限.

研究的目的:

开发新的分子标记物,以评估印度BPH群体内和印度BPH群体之间的遗传多样性.
为了利用线粒体控制区域和核基因组简单序列重复 (gSSRs) 中的多态性来实现种群差异化.

主要方法:

从9个种群中对BPH线粒体控制区域进行PCR放大,克隆和测序.
三种基因组简单序列重复 (gSSR) 标记物的开发和应用.
在控制区域序列上使用HpyCH4IV和Tsp45I酶对限制片长多态度 (dRFLPs) 的分析.

主要成果:

在线粒体控制区域观察到广泛的多态性,归因于可变数量的并联重复.
gSSR标志物显示出群体特定的放大模式,表明遗传差异化.
在9个BPH种群中发现了高的整体遗传多样性 (>5%).
来自控制区域的数字RFLP成功地将所有九个BPH种群区分开来.

结论:

来自BPH线粒体控制区域和gSSR的新型标记物为人口结构和多样性提供了宝贵的见解.
开发的标记物,特别是来自控制区域的dRFLPs,提供了一种快速可靠的方法来区分BPH种群.
这项研究奠定了基于精确种群识别的有针对性和高效的害虫管理策略的基础.

关键词:

昆虫害虫管理昆虫害虫管理尼拉帕尔瓦塔 (尼拉帕尔瓦塔) 装饰品遗传多样性遗传多样性基因组简单序列重复 (gSSRs)在中限制片段长度多态 (dRFLP)大米病虫害的病虫害大米的病虫害串联重复重复的重复

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