Please use this identifier to cite or link to this item: 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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