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Origin and evolution of sex-determination systems in the brown algae.

Authors
  • Coelho, Susana M1
  • Mignerot, Laure1
  • Cock, J Mark1
  • 1 Sorbonne Université, UPMC Univ Paris 06, CNRS, Algal Genetics Group, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS 90c074, F-29688, Roscoff, France. , (France)
Type
Published Article
Journal
New Phytologist
Publisher
Wiley (Blackwell Publishing)
Publication Date
Jun 01, 2019
Volume
222
Issue
4
Pages
1751–1756
Identifiers
DOI: 10.1111/nph.15694
PMID: 30667071
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Sexual reproduction is a nearly universal feature of eukaryotic organisms. Meiosis appears to have had a single ancient origin, but the mechanisms underlying male or female sex determination are diverse and have emerged repeatedly and independently in the different eukaryotic groups. The brown algae are a group of multicellular photosynthetic eukaryotes that have a distinct evolutionary history compared with animals and plants, as they have been evolving independently for over 1 billion yr. Here, we review recent work using the brown alga Ectocarpus as a model organism to study haploid sex chromosomes, and highlight how the diversity of reproductive and life cycle features of the brown algae offer unique opportunities to characterize the evolutionary forces and the mechanisms underlying the evolution of sex determination. © 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.

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