دورية أكاديمية
A quantitative genetic analysis of hibernation emergence date in a wild population of Columbian ground squirrels.
| العنوان: | A quantitative genetic analysis of hibernation emergence date in a wild population of Columbian ground squirrels. |
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| المؤلفون: | Lane JE; Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK. u.columbianus@hotmail.com, Kruuk LE, Charmantier A, Murie JO, Coltman DW, Buoro M, Raveh S, Dobson FS |
| المصدر: | Journal of evolutionary biology [J Evol Biol] 2011 Sep; Vol. 24 (9), pp. 1949-59. Date of Electronic Publication: 2011 Jun 17. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: Switzerland NLM ID: 8809954 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1420-9101 (Electronic) Linking ISSN: 1010061X NLM ISO Abbreviation: J Evol Biol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: January 2024- : [Oxford] : Oxford University Press Original Publication: [Basel, Switzerland : Birkhäuser Verlag, c1988- |
| مواضيع طبية MeSH: | Quantitative Trait, Heritable*, Hibernation/*genetics , Sciuridae/*genetics, Adipose Tissue ; Animals ; Body Weight ; Estrus ; Female ; Male ; Phenotype ; Sex Characteristics |
| مستخلص: | The life history schedules of wild organisms have long attracted scientific interest, and, in light of ongoing climate change, an understanding of their genetic and environmental underpinnings is increasingly becoming of applied concern. We used a multi-generation pedigree and detailed phenotypic records, spanning 18 years, to estimate the quantitative genetic influences on the timing of hibernation emergence in a wild population of Columbian ground squirrels (Urocitellus columbianus). Emergence date was significantly heritable [h(2) = 0.22 ± 0.05 (in females) and 0.34 ± 0.14 (in males)], and there was a positive genetic correlation (r(G) = 0.76 ± 0.22) between male and female emergence dates. In adult females, the heritabilities of body mass at emergence and oestrous date were h(2) = 0.23 ± 0.09 and h(2) = 0.18 ± 0.12, respectively. The date of hibernation emergence has been hypothesized to have evolved so as to synchronize subsequent reproduction with upcoming peaks in vegetation abundance. In support of this hypothesis, although levels of phenotypic variance in emergence date were higher than oestrous date, there was a highly significant genetic correlation between the two (r(G) = 0.98 ± 0.01). Hibernation is a prominent feature in the annual cycle of many small mammals, but our understanding of its influences lags behind that for phenological traits in many other taxa. Our results provide the first insight into its quantitative genetic influences and thus help contribute to a more general understanding of its evolutionary significance. (© 2011 The Authors. Journal of Evolutionary Biology © 2011 European Society For Evolutionary Biology.) |
| تواريخ الأحداث: | Date Created: 20110621 Date Completed: 20111201 Latest Revision: 20110815 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1111/j.1420-9101.2011.02334.x |
| PMID: | 21682787 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1420-9101 |
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| DOI: | 10.1111/j.1420-9101.2011.02334.x |