Sex ratio variation and sex determination in the mallee dragon Ctenophorus fordi
作者机构：School of Biological SciencesUniversity of WollongongWollongongNew South WalesAustralia Department of Structural and Functional BiologyUniversity of Naples Federico IINaplesItaly
出 版 物：《Integrative Zoology》 (整合动物学（英文版）)
年 卷 期：2008年第3卷第3期
页 面：157-165页
核心收录：
学科分类：0710[理学-生物学] 0303[法学-社会学] 12[管理学] 1204[管理学-公共管理] 03[法学] 030301[法学-社会学]
基 金：the field and to Dan Warner for discussions of sex allocation in agamids.All work was carried out in accordance with a National Parks and Wildlife Services permit(S11186) the University of Wollongong Animal Ethics Committee(permits AE04/03-05) the research complies with the laws of Australia.Financial support was provided by the Wenner–Gren Foundations(T.Uller)and the Australian Research Council(T.Uller and M.Olsson)
主 题：genetic-dependent sex determination lizard sex ratio sex allocation temperature-dependent sex determination.
摘 要：Recent evidence suggests that many Australian agamids show temperature-dependent sex determination(TSD)with variation in sex determining mechanisms among closely related ***,as shown in other vertebrates,sex ratios can also be influenced by genetic or phenotypic differences among females in their propensity to produce sons or daughters,and these influences might confound any thermal effects of incubation per *** address these issues,we investigated the determinants of sex ratios in the mallee dragon Ctenophorus fordi,together with a detailed analysis of *** was no detectable variation in sex ratios arising from variation among females,clutches or incubation temperatures,which might indicate genetic sex determination for this ***,there was no evidence of cytologically distinct sex chromosomes using standard banding *** sex ratio pattern in *** strongly contrasts with the results for the congener Ctenophorus pictus,where sex ratios show variation among ***,Australian agamids offer promising opportunities to address fundamental issues in sex ratio biology.
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