Arid
DOI10.1111/j.1420-9101.2011.02438.x
Physiological implications of genomic state in parthenogenetic lizards of reciprocal hybrid origin
Roberts, J. A.1; Vo, H. D.2; Fujita, M. K.3; Moritz, C.3; Kearney, M.1
通讯作者Kearney, M.
来源期刊JOURNAL OF EVOLUTIONARY BIOLOGY
ISSN1010-061X
出版年2012
卷号25期号:2页码:252-263
英文摘要

Parthenogenesis often evolves in association with hybridization, but the associated ecological consequences are poorly understood. The Australian gecko Heteronotia binoei is unusual because triploid parthenogenesis evolved through reciprocal crosses between two sexual lineages, resulting in four possible cytonuclear genotypes. In this species complex, we compared the performance of these parthenogenetic genotypes with their sexual progenitors for a suite of physiological traits (metabolic rate, thermal tolerance, locomotor performance, and in vitro activity and gene sequence divergence of a cytonuclear metabolic pathway, cytochrome C oxidase). Mass-specific metabolic rate scaled differently with body mass for parthenogens and sexuals, while heat tolerance provided the only evidence for cytonuclear incompatibility in hybrid parthenogens. The most prominent phenotypic effects were attributable to nuclear genome dosage. Overall, our results suggest that the hybrid/polyploidy origin of parthenogenetic H. binoei has had surprisingly few negative fitness consequences and may have produced a broader overall niche for the species.


英文关键词Amphibians evolutionary physiology life-history evolution reptiles speciation
类型Article
语种英语
国家Australia ; Sweden ; USA
收录类别SCI-E
WOS记录号WOS:000299043300003
WOS关键词AUSTRALIAN ARID ZONE ; HETERONOTIA-BINOEI GEKKONIDAE ; CYTOCHROME-C-OXIDASE ; MITOCHONDRIAL-DNA ; PHYLOGENETIC CONSTRAINTS ; DARWINS COROLLARY ; CELL-SIZE ; EVOLUTION ; DROSOPHILA ; GECKO
WOS类目Ecology ; Evolutionary Biology ; Genetics & Heredity
WOS研究方向Environmental Sciences & Ecology ; Evolutionary Biology ; Genetics & Heredity
来源机构University of California, Berkeley
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/173491
作者单位1.Univ Melbourne, Dept Zool, Parkville, Vic 3010, Australia;
2.Lund Univ, Sch Ecol & Biol Sci, Lund, Sweden;
3.Univ Calif Berkeley, Dept Integrat Biol, Museum Vertebrate Zool, Berkeley, CA 94720 USA
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Roberts, J. A.,Vo, H. D.,Fujita, M. K.,et al. Physiological implications of genomic state in parthenogenetic lizards of reciprocal hybrid origin[J]. University of California, Berkeley,2012,25(2):252-263.
APA Roberts, J. A.,Vo, H. D.,Fujita, M. K.,Moritz, C.,&Kearney, M..(2012).Physiological implications of genomic state in parthenogenetic lizards of reciprocal hybrid origin.JOURNAL OF EVOLUTIONARY BIOLOGY,25(2),252-263.
MLA Roberts, J. A.,et al."Physiological implications of genomic state in parthenogenetic lizards of reciprocal hybrid origin".JOURNAL OF EVOLUTIONARY BIOLOGY 25.2(2012):252-263.
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