Thermal variation reveals natural variation between isolates of Caenorhabditis elegans

SC Harvey, ME Viney

Research output: Contribution to journalArticle (Academic Journal)peer-review

38 Citations (Scopus)

Abstract

The free-living nematode Caenorhabditis elegans is distributed globally and found in many varied habitats. However, in comparison to our understanding of the genetics of the species, little is known about natural variation and many major life history traits appear to show only limited differences between isolates. Here we show that temperature affects the lifetime fecundity and the reproductive timing of C. elegans and that there is a genotype by environment interaction, with isolates varying in how lifetime fecundity changes with temperature. We show that the lower lifetime fecundity observed at higher temperatures is primarily due to a reduction in the number of functional sperm. Further, isolates vary in their lifetime fecundity because of inter-isolate differences in this effect of temperature on the number of functional sperm.
Translated title of the contributionThermal variation reveals natural variation between isolates of Caenorhabditis elegans
Original languageEnglish
Pages (from-to)409 - 416
Number of pages8
JournalJournal of Experimental Zoology Part B: Molecular and Developmental Evolution
Volume308B (4)
DOIs
Publication statusPublished - Jul 2007

Bibliographical note

Publisher: Wiley

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