MARAIS Gabriel

  • LBBE, CNRS / Univ. Lyon 1, Lyon, France
  • Bioinformatics & Computational Biology, Evolutionary Applications, Expression Studies, Genome Evolution, Human Evolution, Molecular Evolution, Population Genetics / Genomics, Reproduction and Sex, Sexual Selection
  • recommender


2 recommendations

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The Y chromosome may contribute to sex-specific ageing in Drosophila
Emily J Brown, Alison H Nguyen, Doris Bachtrog

Recommended by Gabriel Marais, Jean-François Lemaitre and Cristina Vieira
Y chromosome makes fruit flies die younger

In most animal species, males and females display distinct survival prospect, a phenomenon known as sex gap in longevity (SGL, Marais et al. 2018). The study of SGLs is crucial not only for having a full picture of the causes underlying organisms’ health, aging and death but also to initiate the development of sex-specific anti-aging interventions in humans (Austad and Bartke 2015). Three non-mutually evolutionary causes have been proposed to underlie SGLs (Marais et al. 2018). First, SGLs...

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Birth of a W sex chromosome by horizontal transfer of Wolbachia bacterial symbiont genome
Sébastien Leclercq, Julien Thézé, Mohamed Amine Chebbi, Isabelle Giraud, Bouziane Moumen, Lise Ernenwein, Pierre Grève, Clément Gilbert, and Richard Cordaux

Recommended by Gabriel Marais and Sylvain Charlat
A newly evolved W(olbachia) sex chromosome in pillbug!

In some taxa such as fish and arthropods, closely related species can have different mechanisms of sex determination and in particular different sex chromosomes, which implies that new sex chromosomes are constantly evolving [1]. Several models have been developed to explain this pattern but empirical data are lacking and the causes of the fast sex chromosome turn over remain mysterious [2-4]. Leclerq et al. [5] in a paper that just came out in PNAS have focused on one possible explanation: *W...


1 review

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A bird’s white-eye view on neosex chromosome evolution
Thibault Leroy, Yoann Anselmetti, Marie-Ka Tilak, Sèverine Bérard, Laura Csukonyi, Maëva Gabrielli, Céline Scornavacca, Borja Milá, Christophe Thébaud, Benoit Nabholz

Recommended by Kateryna Makova based on reviews by Gabriel Marais, Melissa Wilson and 1 anonymous reviewer
Young sex chromosomes discovered in white-eye birds

Recent advances in next-generation sequencing are allowing us to uncover the evolution of sex chromosomes in non-model organisms. This study [1] represents an example of this application to birds of two Sylvioidea species from the genus Zosterops (commonly known as white-eyes). The study is exemplary in the amount and types of data generated and in the thoroughness of the analysis applied. Both male and female genomes were sequenced to allow the authors to identify sex-chromosome specific scaf...