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Sex chromosome evolution : Historical insights and future perspectives

Author:
  • Jessica K. Abbott
  • Anna K. Nordén
  • Bengt Hansson
Publishing year: 2017-05-17
Language: English
Publication/Series: Proceedings of the Royal Society B: Biological Sciences
Volume: 284
Issue: 1854
Document type: Journal article review
Publisher: Royal Society

Abstract english

Many separate-sexed organisms have sex chromosomes controlling sex determination. Sex chromosomes often have reduced recombination, specialized (frequently sex-specific) gene content, dosage compensation and heteromorphic size. Research on sex determination and sex chromosome evolution has increased over the past decade and is today a very active field. However, some areas within the field have not received as much attention as others.We therefore believe that a historic overviewof key findings and empirical discoveries will put current thinking into context and help us better understand where to go next. Here, we present a timeline of important conceptual and analytical models, as well as empirical studies that have advanced the field and changed our understanding of the evolution of sex chromosomes. Finally, we highlight gaps in our knowledge so far and propose some specific areas within the field that we recommend a greater focus on in the future, including the role of ecology in sex chromosome evolution and newmultilocus models of sex chromosome divergence.

Keywords

  • Evolutionary Biology
  • Degeneration
  • Dosage compensation
  • Heteromorphic
  • Homomorphic
  • Timeline
  • Turnover

Other

Published
  • ISSN: 0962-8452
Anna Nordén
E-mail: anna [dot] norden [at] biol [dot] lu [dot] se

Doctoral student

Evolutionary ecology

+46 46 222 43 16

E-B274

50

Research group

Genetics of sex differences

Projects

Intralocus sexual conflict in a hermaphrodite

Supervisors

Main supervisor

Jessica Abbott

Assistant supervisor

Bengt Hansson