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Evolution under unpredictable environmental conditions: Quantitative genetics of larval life-history traits in a myobatrachid frog Crinia georgiana

Title
Evolution under unpredictable environmental conditions: Quantitative genetics of larval life-history traits in a myobatrachid frog Crinia georgiana
Authors
Smith M.J.Jang Y.
Ewha Authors
장이권
SCOPUS Author ID
장이권scopus
Issue Date
2012
Journal Title
Animal Cells and Systems
ISSN
1976-8354JCR Link
Citation
vol. 16, no. 5, pp. 425 - 430
Indexed
SCIE; SCOPUS; KCI WOS scopus
Abstract
The southwestern Australian frog Crinia georgiana (Anura; Myobatrachidae) inhabits ephemeral pools in which the tadpoles often face desiccation. Under these conditions selection on tadpoles can be severe and can directly affect fitness during the aquatic as well as the terrestrial developmental stages. A quantitative genetic study using a half-sib breeding design was conducted to understand the genetic effects on larval life-history traits. We found no significant additive genetic variance in any of larval traits. Except for hatching period, heritability estimates based on females were high in egg size, larval period, snout-vent length, and weight at metamorphosis, suggesting non-additive genetic effects. These results indicate that any response to selection during hatching and larval periods should be predominately governed by non-additive genetic effects in C. georgiana. © 2012 Copyright Korean Society for Integrative Biology.
DOI
10.1080/19768354.2012.715594
Appears in Collections:
자연과학대학 > 생명과학전공 > Journal papers
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