Microsatellites reveal that genetic mixing commonly occurs between invasive fall armyworm populations in Africa.
Microsatellites reveal that genetic mixing commonly occurs between invasive fall armyworm populations in Africa.
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DOI：
10.1038/s41598-021-00298-3
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发表时间：
2021-10-21
影响因子：
4.6
通讯作者：
Wilson K
中科院分区：
文献类型：
--
作者：
Withers AJ;de Boer J;Chipabika G;Zhang L;Smith JA;Jones CM;Wilson K
了解入侵的秋季粘虫(FAW)的种群结构和运动很重要，因为它有助于减轻作物损害，并突出有爆发风险或不断演变的杀虫剂耐药性的地区。由于基因突变影响了传统上用于菌株和单倍型鉴定的标记：线粒体细胞色素氧化酶I(COIB)和Z染色体连锁的磷酸丙糖异构酶(TPI)，因此确定侵袭性一汽的群体结构一直是一个挑战。在这里，我们将COIB和TPI标记的结果与高度可变的重复区域(微卫星)进行比较，以提高我们对一汽在非洲的人口结构的理解。使用COIB标记的遗传多样性非常有限，而使用TpiI4标记的遗传多样性更大，几乎没有证据表明非洲各地的一汽群体之间存在遗传结构。使用微卫星发现了更大的遗传多样性，这揭示了一汽在很大程度上是泛欧群体，同时也有一些证据表明国家之间存在遗传结构。这里的假设是，一汽利用长途飞行和盛行的风频繁地在非洲各地移动，导致人口混杂。这些方法结合在一起提供了重要的证据，表明入侵的一汽群体之间的基因混合可能比之前报道的更常见。
Understanding the population structure and movements of the invasive fall armyworm (FAW, Spodoptera frugiperda) is important as it can help mitigate crop damage, and highlight areas at risk of outbreaks or evolving insecticide resistance. Determining population structure in invasive FAW has been a challenge due to genetic mutations affecting the markers traditionally used for strain and haplotype identification; mitochondrial cytochrome oxidase I (COIB) and the Z-chromosome-linked Triosephosphate isomerase (Tpi). Here, we compare the results from COIB and Tpi markers with highly variable repeat regions (microsatellites) to improve our understanding of FAW population structure in Africa. There was very limited genetic diversity using the COIB marker, whereas using the TpiI4 marker there was greater diversity that showed very little evidence of genetic structuring between FAW populations across Africa. There was greater genetic diversity identified using microsatellites, and this revealed a largely panmictic population of FAW alongside some evidence of genetic structuring between countries. It is hypothesised here that FAW are using long-distance flight and prevailing winds to frequently move throughout Africa leading to population mixing. These approaches combined provide important evidence that genetic mixing between invasive FAW populations may be more common than previously reported.
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影响因子：
1.9
作者：
Armes, NJ;Jadhav, DR;DeSouza, KR
通讯作者：
DeSouza, KR
DOI：
10.1046/j.1471-8278.2000.00014.x
发表时间：
2001-03-01
期刊：
MOLECULAR ECOLOGY NOTES
影响因子：
--
作者：
Agapow, PM;Burt, A
通讯作者：
Burt, A
影响因子：
4.9
作者：
Jost, Lou
通讯作者：
Jost, Lou
影响因子：
2.3
作者：
Arias, Renee S.;Blanco, Carlos A.;Scheffler, Brian E.
通讯作者：
Scheffler, Brian E.
影响因子：
3.7
作者：
Nagoshi RN;Fleischer S;Meagher RL;Hay-Roe M;Khan A;Murúa MG;Silvie P;Vergara C;Westbrook J
通讯作者：
Westbrook J