Heat induced male sterility in Drosophila melanogaster: adaptive genetic variations among geographic populations and role of the Y chromosome

The Journal of Experimental Biology
C RohmerD Joly

Abstract

We analyzed genetic variation among geographically diverse populations of Drosophila and showed that tropical flies are more tolerant than temperate ones to heat-induced male sterility, as assessed by the presence of both motile sperm and progeny production. In tropical populations, the temperature inducing 50% sterility (median threshold) is 1 degrees C above the value for temperate populations (30.4 vs. 29.4 degrees C). When transferred to a mild permissive temperature (21 degrees C), males recover fertility. Recovery time is proportional to pre-adult culture temperature. At these temperatures, recovery time is greater for temperate than for tropical populations. Crosses between a temperate and a tropical strain (F1, F2 and successive backcrosses) revealed that the Y chromosome was responsible for much of the geographic variation. Sterile males exhibited diverse abnormalities in the shape and position of sperm nuclei. However, impairment of the spermatid elongation seems to be the major factor responsible for sperm inviability. Heat-induced male sterility seems to be quite a general phenomenon in Drosophilid species and variation of threshold temperatures may be important for explaining their geographic distributions.

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Citations

Aug 7, 2009·Genetica·Dominique Joly, Michele Schiffer
Oct 5, 2011·Proceedings of the National Academy of Sciences of the United States of America·Timothy B SacktonBernardo Lemos
Oct 13, 2006·PLoS Genetics·Jean-Claude WalserMartin E Feder
Apr 8, 2014·Bulletin of Entomological Research·H J LiaoX D Liu
Dec 25, 2012·Journal of Insect Physiology·Thanh Manh NguyenClaude Chevrier
Aug 1, 2015·Journal of Evolutionary Biology·R M GriffinU Friberg
Dec 18, 2008·Evolution; International Journal of Organic Evolution·Daniel R MatuteJerry A Coyne
Oct 3, 2012·Annals of the New York Academy of Sciences·Norman A Johnson, Joseph Lachance
Jul 30, 2005·Molecular Phylogenetics and Evolution·Artyom KoppJeffrey Fu
Jun 16, 2015·The New Phytologist·Kirsten BombliesLevi Yant
Sep 29, 2015·Spermatogenesis·Geulah Ben-DavidJosefa Steinhauer
Jan 11, 2011·Journal of Insect Physiology·Z Valentina Zizzari, Jacintha Ellers
Apr 30, 2016·Integrative and Comparative Biology·Lauren B Buckley, Raymond B Huey
Aug 28, 2010·Proceedings of the National Academy of Sciences of the United States of America·Bernardo LemosDaniel L Hartl
Dec 15, 2017·Proceedings. Biological Sciences·Alan T BrancoBernardo Lemos
Jun 13, 2008·Journal de la Société de biologie·Jean R David
Oct 2, 2019·ELife·Ramakrishnan VasudevaMatthew Jg Gage

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