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首页> 外文期刊>The Korean Journal of Genetics >Chromosome inversion - environment relationships in Korean populations of Drosophila melanogaster
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Chromosome inversion - environment relationships in Korean populations of Drosophila melanogaster

机译：果蝇韩国人群染色体倒置与环境的关系

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Inversion polymorphisms from twenty two Korean populations of Drosophila melanogaster were analysed for relationships between inversion frequencies and environmental variables. From screening gametes in male for allele frequency and fertilized eggsinseminated in nature for heterozygosity, a total of thirty three polymorphic inversions were found and identified to be paracentric only. Eight were common and cosmopolitan, and twenty five were new, rare and generally endemic. And three complex inversions were detected, two overlapping inversions and a including inversion. For inversion-environment relationships, allele frequency, heterozygosity of six cosmopolitan inversions and a number of variables selected from possible environmental factors wereexamined by the methods of multivariate data analyses. Significant inversion-environment associations were found at several inversions, especially at In(2L)t and In(2R)NS, in both allele frequency and heterozygosity. For north- south cline with the frequencies of the six commonest inversions, twenty one populations, except for the Ulleungdo(5), were categorized into three longitudinal groups: E-line group (along the east seaside), C-line (lining up in central region) and W-line (locating toward westernarea near the yellow sea). Significant geographic cline was positively or negatively sorted by only one or a few types of inversion in each of the three geographic groups. The close associations were particularly evident with respect to weather conditions and the patterns of inversion variations. Therefore, it is suggested that natural selection plays role as a major factor to determine the genetic patterns of geographic populations.
机译：分析了来自韩国22个果蝇果蝇种群的反转多态性，以了解反转频率与环境变量之间的关系。通过筛选雄性配子的等位基因频率和自然受精的受精卵的杂合性，总共发现了33个多态性倒位，并且被确定为仅是同心的。八个是普通的和世界性的，而二十五个是新的，罕见的且普遍流行的。并且检测到三个复杂的反演，两个重叠的反演和一个包括反演的反演。对于倒位与环境的关系，通过多变量数据分析方法检查了等位基因频率，六个世界性倒位的杂合性以及从可能的环境因素中选择的许多变量。在等位基因频率和杂合性方面，特别是在In（2L）t和In（2R）NS的几个反演中，发现了重要的反演-环境关联。对于具有六个最常见反转频率的南北斜线，除Ulleungdo（5）外，二十一个人口被分为三个纵向组：E线组（沿东海边），C线（排成一行）在中部地区）和W线（位于黄海附近的西部地区）。在三个地理组中的每一个中，仅按一种或几种反演的类型对重要地理系进行了正面或负面的排序。在天气条件和反演变化模式方面，这种密切联系尤其明显。因此，建议自然选择是决定地理种群遗传模式的主要因素。

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