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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Newly evolved cytoraces of nasuta-albomicans complex of Drosophila live better than their parents as revealed by life-history trait analysis at three different temperatures.
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Newly evolved cytoraces of nasuta-albomicans complex of Drosophila live better than their parents as revealed by life-history trait analysis at three different temperatures.

机译：通过在三个不同温度下进行的生命历史特征分析，果蝇的新近形成的果蝇纳沙塔-白化病复合物的细胞质比其父母的生活更好。

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摘要

The long-range interracial hybridization experiments between a pair of cross fertile races, Drosophila nasuta nasuta (2n=8) and Drosophila nasuta albomicans (2n=6) have resulted in the evolution of two new karyotypic strains called cytoraces 1 and 2, which harbour chromosomes from both their parents and differ in their karyotypic composition, mating preference and morphometric traits. In the present study, the effect of temperature on certain life-history traits such as lifetime fecundity, lifetime fertility, ovariole number and longevity of virgin and mated males and females was tested in the parents and two cytoraces. The results revealed that in most of the assessments, the newly evolved cytoraces showed maximum fitness, suggesting that the newly evolved cytoraces survive and live better than their parental races.
机译：一对杂交育种果蝇（Drosophila nasuta nasuta（2n = 8）和果蝇Drosophila nasuta albomicans（2n = 6））之间的长期异族杂交实验导致了两个新的核型菌株的进化，它们被称为细胞质1和2。父母双方的染色体，其核型组成，交配偏好和形态特征不同。在本研究中，在父母和两个母体中测试了温度对某些生命历史特征的影响，例如终生繁殖力，终生生育力，卵巢数目和未婚和交配的雄性和雌性的寿命。结果显示，在大多数评估中，新近进化的细胞种显示出最大的适应性，这表明新近进化的细胞种比其亲代存活并生活得更好。

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