Affiliation:
1. Department of Integrative Biology, University of California Berkeley, Berkeley, CA 94720, USA.
Abstract
Sex Chromosome Evolution
The fly genus
Drosophilia
has repeatedly generated evolutionarily new sex chromosomes. To understand the changes shaping the X and Y chromosomes,
Zhou and Bachtrog
(p.
341
), sequenced the genome of
D. miranda
, which formed neo-X and neo-Y chromosomes approximately 1 million years ago. The data illuminate the ongoing conflict between selection for male and female function on the sex chromosomes and show that Y chromosome evolution is characterized both by a loss of gene function and selection for male-specific adaptations in genes beneficial to male functions.
Publisher
American Association for the Advancement of Science (AAAS)
Cited by
177 articles.
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