PMID: 9436536Jan 22, 1998Paper

Evolutionary changes of nonlinear reaction norms according to thermal adaptation: a comparison of two Drosophila species

Comptes rendus de l'Académie des sciences. Série III, Sciences de la vie
B MoreteauJean R David

Abstract

While the adaptive significance of discontinuous reaction norms is generally accepted, the evolutionary interpretation of continuous response curves remains speculative, and the occurrence of internal constraints is often suggested as an explanation of experimental observations. In Drosophila melanogaster, various morphometrical traits exhibit convex reaction norms to growth temperature, with a maximum value within the developmental thermal range. We compared a cold-adapted species (D. subobscura) with a mid thermal range at 16 degrees C, to the warm-adapted D. melanogaster (mid thermal range at 22 degrees C) for three different morphometrical traits: wing and thorax length in both sexes and ovariole number in females. Maximum value temperatures were ordered in the same way for the three traits in both species: ovariole number > thorax length > wing length. Significant differences were also observed between the two species for the curvature parameter of the quadratic adjustment. The major observation was a significant lateral shift in the reaction norms: maximum values were observed at much lower temperatures in the cold-adapted species than in the warm-adapted one. The parallelism between mid thermal range variation and the po...Continue Reading

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Jan 1, 1990·Perspectives in Biology and Medicine·B Wallace
Apr 1, 1988·Trends in Genetics : TIG·J R David, P Capy
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Citations

Apr 4, 2000·Journal of Thermal Biology·J S Kari, R B Huey
Jun 13, 2008·Journal de la Société de biologie·Jean R David
Nov 27, 2010·BMC Evolutionary Biology·Olga DolgovaMauro Santos
Apr 27, 2013·Journal of Evolutionary Biology·A P MøllerP L Pap
Dec 5, 2013·Evolution; International Journal of Organic Evolution·Peter KlepsatelThomas Flatt
Dec 28, 2011·Developmental Biology·Didem Pelin SarikayaCassandra G Extavour
Apr 8, 2015·Journal of Insect Physiology·Jesper Givskov SørensenMads Fristrup Schou
Sep 19, 2006·Zoology : Analysis of Complex Systems, ZACS·Raymond B HueyJean R David
Jun 18, 2019·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Heidi J MacLeanJohannes Overgaard
Jun 30, 2001·Evolution; International Journal of Organic Evolution·P GibertJ R David
Oct 8, 2021·Evolution; International Journal of Organic Evolution·Marta A SantosPedro Simões

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