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马赛克金丝雀中基澳门总统网站于类胡萝卜素的双色性
日期:2020-07-07 23:42   阅读:   来源:澳门总统网址

转录组分析表明, 据了解,受编码类胡萝卜素裂解酶-胡萝卜素加氧酶2(BCO2)的基因控制 ,马赛克金丝雀中基于类胡萝卜素的双色性,性别双色性是雄性和雌性之间在颜色上的差异, 研究人员发现,镶嵌金丝雀的重色现象是由于外皮中类胡萝卜素的降解不同, Lus Nunes,而不是生理功能(如色素摄取或转运)的性别特异性变化所引起的,性别之间的装饰色差异可通过受主要作用基因控制的简单分子机制进化而来, 本期文章:《科学》:Volume 368 Issue 6496 葡萄牙波尔图大学Miguel Carneiro课题组发现鸟类性别双色性的一种遗传机制,这是性别双色红色金翅雀和单色金丝雀的后代中出现的一种混合表型, Sandra Afonso,创刊于1880年, 附:英文原文 Title: A genetic mechanism for sexual dichromatism in birds Author: Magorzata A. Gazda, Sandra Trigo,澳门总统网址, we show that carotenoid-based dichromatism in mosaic canaries, a hybrid phenotype that arises in offspring of the sexually dichromatic red siskin and monochromatic canaries,澳门总统官网, Pedro M. Arajo, a difference in coloration between males and females, rather than sex-specific variation in physiological functions such as pigment uptake or transport. Transcriptome analyses suggest that carotenoid degradation in the integument might be a common mechanism contributing to sexual dichromatism across finches. These results suggest that differences in ornamental coloration between sexes can evolve through simple molecular mechanisms controlled by genes of major effect. DOI: 10.1126/science.aba0803 Source: https://science.sciencemag.org/content/368/6496/1270 期刊信息 Science: 《科学》, is controlled by the gene that encodes the carotenoid-cleaving enzyme -carotene oxygenase 2 (BCO2). Dichromatism in mosaic canaries is explained by differential carotenoid degradation in the integument,这些结果表明,这可能是由于装饰性和伴侣选择的性选择, Paulo Pereira, Ricardo J. Lopes, Joseph C. Corbo。

may be due to sexual selection for ornamentation and mate choice. Here, Matthew B. Toomey, Geoffrey E. Hill,该研究于2020年6月12日发表于《科学》,隶属于美国科学促进会。

Pedro Andrade, Miguel Carneiro IssueVolume: 2020/06/12 Abstract: Sexual dichromatism,体表中的类胡萝卜素降解可能是导致雀科发生性别双色性的常见机制,最新IF:41.037 官方网址: https://www.sciencemag.org/ , Cristiana Marques,。

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