Comparative transcriptomics of anal fin pigmentation patterns in cichlid fishes

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• 作者：M. Emília Santos ; Laura Baldo ; Langyu Gu ; Nicolas Boileau ; Zuzana Musilova…
• 关键词：Pigmentation ; Diversity ; Egg ; spot ; Blotches ; East African cichlids ; Gene expression
• 刊名：BMC Genomics
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：17
• 期：1
• 全文大小：1417KB
• 刊物主题：Life Sciences, general; Microarrays; Proteomics; Animal Genetics and Genomics; Microbial Genetics and Genomics; Plant Genetics & Genomics;
• 出版者：BioMed Central
• ISSN：1471-2164
• 卷排序：17

文摘

BackgroundUnderstanding the genetic basis of novel traits is a central topic in evolutionary biology. Two novel pigmentation phenotypes, egg-spots and blotches, emerged during the rapid diversification of East African cichlid fishes. Egg-spots are circular pigmentation markings on the anal fins of hundreds of derived haplochromine cichlids species, whereas blotches are patches of conspicuous anal fin pigmentation with ill-defined boundaries that occur in few species that belong to basal cichlid lineages. Both traits play an important role in the breeding behavior of this group of fishes. Knowledge about the origin, homology and underlying genetics of these pigmentation traits is sparse.