Tag: James Mallet
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Nation & World
Why are hybrid animals sterile?
Study of crossbred butterflies suggests multiple genes involved
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Nation & World
A clue to biodiversity?
An analysis of 20 butterfly genomes found evidence that many butterfly species — including distantly related species — show a surprisingly high amount of gene flow between them, Harvard researchers found.
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Nation & World
Vivid details
A landmark effort to sequence the genome of the butterfly Heliconius melpomene has revealed that it shares genes that control color patterns with two species that closely mimic its appearance — Heliconius timareta and Heliconius elevatus — suggesting that all three exchange genes as a result of occasional hybridization.
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Nation & World
Re-examining Darwin’s thoughts on species
Radcliffe Fellow James Mallet says Darwin’s idea of speciation as a step in a continuum of differences reflects reality in nature.