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首页> 外文期刊>Biochemical Genetics >Temporal and Spatial Allozyme Variation in the South American Cactophilic Drosophila antonietae (Diptera; Drosophilidae)
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Temporal and Spatial Allozyme Variation in the South American Cactophilic Drosophila antonietae (Diptera; Drosophilidae)

机译：南美仙人掌嗜果蝇（Dipophila antonietae）（双翅目；果蝇科）的时间和空间同工酶变化。

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摘要

Drosophila antonietae is an endemic South American cactophilic species that uses Cereus hildmaniannus rotting cladodes as breeding sites. We assessed temporal and spatial intrapopulational allozyme variation of two natural populations. Our results suggest that environmental variation (rain precipitation) is probably influencing allozyme temporal variation. Moreover, it seems that D. antonietae does not have intrapopulation structure and has N ev (variance effective size) ≅ 83 and N ec (number of adult flies that colonize each rotting cladode) = 21. The deficiency of heterozygotes found must be due to null alleles, a temporal Wahlund effect, or selection against heterozygotes. Assortative mating and inbreeding are discarded. This is the first report on allozyme variation in D. antonietae. It gives some insight on intrapopulational genetics through space and time for this species. This is important to understand its general genetic variability and will be essential to future works on the natural history and evolution of this species.
机译：果蝇Antonietae是南美特有的嗜酸性菌种，它使用蜡状盲肠腐烂的枝条作为繁殖地。我们评估了两个自然种群的时间和空间种群内同工酶变异。我们的结果表明环境变化（雨水降水）可能影响同工酶的时间变化。此外，似乎Antonietae不具有种群内结构，并且具有N ev（变异有效大小）≅83和N ec（在每个腐烂的枝丛中定居的成年果蝇数量）= 21。发现的杂合子缺乏必须归因于无效等位基因，暂时的Wahlund效应或针对杂合子的选择。交配和近交被丢弃。这是关于D. antonietae中同工酶变异的第一份报告。它通过空间和时间对该物种的种群内遗传学提供了一些见识。这对于了解其一般遗传变异性很重要，并且对于该物种的自然历史和进化的未来工作必不可少。

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