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Butterfly genome reveals promiscuous exchange of mimicry adaptations among species
TLDR
It is inferred that closely related Heliconius species exchange protective colour-pattern genes promiscuously, implying that hybridization has an important role in adaptive radiation. Expand
THE LOCI OF REPEATED EVOLUTION: A CATALOG OF GENETIC HOTSPOTS OF PHENOTYPIC VARIATION
TLDR
A synthesis of 1008 alleles described in the literature that cause phenotypic differences among animals, plants, and yeasts highlights the existence of genetic paths of least resistance leading to viable evolutionary change. Expand
Patterning of palatal rugae through sequential addition reveals an anterior/posterior boundary in palatal development
TLDR
It is shown that palatal rugae are sequentially added to the growing palate, in an interposition process that appears to be dependent on activation-inhibition mechanisms and reveals a new developmental boundary in thegrowing palate. Expand
Wnt signaling underlies evolution and development of the butterfly wing pattern symmetry systems.
TLDR
The first molecular characterization of symmetry system development is presented by showing that WntA expression is consistently associated with the major basal, discal, central, and external symmetry system patterns of nymphalid butterflies, suggesting a role for Wnt signaling in color pattern induction. Expand
Diversification of complex butterfly wing patterns by repeated regulatory evolution of a Wnt ligand
TLDR
Linkage mapping, gene-expression analysis, and pharmacological treatments all indicate that cis-regulatory evolution of the WntA ligand underpins discrete changes in color pattern features across the Heliconius genus. Expand
Wingless and aristaless2 define a developmental ground plan for moth and butterfly wing pattern evolution.
TLDR
This study describes for the first time a novel Lepidoptera-specific homeobox gene, aristaless2 (al2), which precedes wg expression during the early determination of DII stripe patterns, suggesting homology of these pattern elements across moths and butterflies. Expand
Multiple recent co-options of Optix associated with novel traits in adaptive butterfly wing radiations
TLDR
It is revealed that the repeated co-option of Optix into various aspects of wing scale specification was associated with multiple evolutionary novelties over a relatively short evolutionary time scale, and was a necessary condition to the explosive diversification of passion-vine butterfly wing patterns. Expand
Ancient homology underlies adaptive mimetic diversity across butterflies
TLDR
Combining positional cloning, population genomic resequencing, association mapping and developmental data is used to demonstrate that positionally orthologous nucleotide variants in the upstream region of the same gene, WntA, are responsible for parallel mimetic variation in two butterfly lineages that diverged >65 million years ago. Expand
Genomic hotspots of adaptation in butterfly wing pattern evolution.
TLDR
Recent work on butterfly wing pattern genetics shows that a small set of loci can be repeatedly involved in the evolution of complex traits, suggesting that certain loci may be more likely than others to facilitate rapid evolutionary change. Expand
Polarised expression of FoxB and FoxQ2 genes during development of the hydrozoan Clytia hemisphaerica
TLDR
The results support the idea that an early embryonic patterning system involving FoxB and FoxQ2 family genes has been evolutionary conserved and indicate that Fox family genes have also acquired distinct roles during other phases of the hydrozoan life cycle. Expand
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