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https://doi.org/10.1098/rspb.2017.2685
Title: | Apterous a specifies dorsal wing patterns and sexual traits in butterflies | Authors: | Prakash, A Monteiro, A |
Keywords: | butterfly color developmental biology differentiation evolution gene gene expression protein sexual dimorphism wing morphology Bicyclus anynana Nymphalidae Papilionoidea insect protein transcription factor animal butterfly clustered regularly interspaced short palindromic repeat color evolution gene expression gene regulatory network genetics metabolism mutation phenotype physiology pigmentation wing Animals Biological Evolution Butterflies Clustered Regularly Interspaced Short Palindromic Repeats Color Gene Expression Gene Regulatory Networks Insect Proteins Mutation Phenotype Pigmentation Transcription Factors Wings, Animal |
Issue Date: | 2018 | Publisher: | Royal Society Publishing | Citation: | Prakash, A, Monteiro, A (2018). Apterous a specifies dorsal wing patterns and sexual traits in butterflies. Proceedings of the Royal Society B: Biological Sciences 285 (1873) : 20172685. ScholarBank@NUS Repository. https://doi.org/10.1098/rspb.2017.2685 | Abstract: | Butterflies have evolved different colour patterns on their dorsal and ventral wing surfaces to serve different signalling functions, yet the developmental mechanisms controlling surface-specific patterning are still unknown. Here, we mutate both copies of the transcription factor apterous in Bicyclus anynana butterflies using CRISPR/Cas9 and show that apterous A, expressed dorsally, functions both as a repressor and modifier of ventral wing colour patterns, as well as a promoter of dorsal sexual ornaments in males. We propose that the surface-specific diversification of wing patterns in butterflies proceeded via the co-option of apterous A or its downstream effectors into various gene regulatory networks involved in the differentiation of discrete wing traits. Further, interactions between apterous and sex-specific factors such as doublesex may have contributed to the origin of sexually dimorphic surface-specific patterns. Finally, we discuss the evolution of eyespot number diversity in the family Nymphalidae within the context of developmental constraints due to apterous regulation. © 2018 The Author(s). | Source Title: | Proceedings of the Royal Society B: Biological Sciences | URI: | https://scholarbank.nus.edu.sg/handle/10635/175126 | ISSN: | 0962-8452 | DOI: | 10.1098/rspb.2017.2685 |
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