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首页> 外文期刊>Journal of genetics >Introgressive hybridization and evolution of a novel protein phenotype: glue protein profiles in the nasutaa€“albomicans complex of Drosophila
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Introgressive hybridization and evolution of a novel protein phenotype: glue protein profiles in the nasutaa€“albomicans complex of Drosophila

机译：渗入性杂交和新蛋白表型的进化：果蝇的nasutaa – albomicans复合物中的胶蛋白谱

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摘要

Glue proteins are tissue-specific proteins synthesized by larval salivary gland cells of Drosophila. In Drosophila nasuta nasuta and D. n. albomicans of the nasuta subgroup, the genes that encode the major glue protein fractions are X-linked. In the present study, these X-linked markers have been employed to trace the pattern of introgression of D. n. nasuta and D. n. albomicans genomes with respect to the major glue protein fractions in their interracial hybrids, called cytoraces. These cytoraces have inherited the chromosomes of both parents and have been maintained in the laboratory for over 400a€“550 generations. The analysis has revealed that cytoraces with D. n. albomicans X chromosome show either D. n. nasuta pattern or a completely novel pattern of glue protein fractions. Further, quantitative analysis also shows lack of correlation between the chromosomal pattern of inheritance and overall quantity of the major glue protein fractions in the cytoraces. Thus, in cytoraces the parental chromosomes are not just differentially represented but there is evidence for introgression even at the gene level.
机译：胶蛋白是果蝇幼虫唾液腺细胞合成的组织特异性蛋白。在果蝇nasuta nasuta和D。 nasuta亚组的白化病菌，编码主要胶蛋白部分的基因是X连锁的。在本研究中，这些X连锁标记已被用来追踪D. n。的渗入模式。 nasuta和D.关于其异族杂种中主要胶蛋白部分的白细胞基因组，称为细胞种族。这些细胞种继承了父母双方的染色体，并在实验室中维持了400到550多个世代。分析表明，D.n。白化病X染色体显示D. n.。 nasuta模式或胶蛋白部分的全新模式。此外，定量分析还显示遗传的染色体模式与细胞质中主要胶蛋白部分的总量之间没有相关性。因此，在细胞种中，亲本染色体不仅被不同地代表，而且甚至在基因水平上也有渗入的证据。

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