Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1038/sj.hdy.6801013 |
The population genetics of a solitary oligolectic sweat bee, Lasioglossum (Sphecodogastra) oenotherae (Hymenoptera : Halictidae) | |
Zayed, A.; Packer, L. | |
通讯作者 | Zayed, A. |
来源期刊 | HEREDITY
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ISSN | 0018-067X |
出版年 | 2007 |
卷号 | 99期号:4页码:397-405 |
英文摘要 | Strong evidence exists for global declines in pollinator populations. Data on the population genetics of solitary bees, especially diet specialists, are generally lacking. We studied the population genetics of the oligolectic bee Lasioglossum oenotherae, a specialist on the pollen of evening primrose ( Onagraceae), by genotyping 455 females from 15 populations across the bee’s North American range at six hyper-variable microsatellite loci. We found significant levels of genetic differentiation between populations, even at small geographic scales, as well as significant patterns of isolation by distance. However, using multilocus genotype assignment tests, we detected 11 first-generation migrants indicating that L. oenotherae’s sub-populations are experiencing ongoing gene flow. Southern populations of L. oenotherae were significantly more likely to deviate from Hardy-Weinberg equilibrium and from genotypic equilibrium, suggesting regional differences in gene flow and/or drift and inbreeding. Short-term N(e) estimated using temporal changes in allele frequencies in several populations ranged from similar to 223 to 960. We discuss our findings in terms of the conservation genetics of specialist pollinators, a group of considerable ecological importance. |
英文关键词 | population structure isolation by distance linkage disequilibrium migration diet specialization microsatellites |
类型 | Article |
语种 | 英语 |
国家 | Canada |
收录类别 | SCI-E |
WOS记录号 | WOS:000249720900008 |
WOS关键词 | COMPLEMENTARY SEX DETERMINATION ; MULTILOCUS GENOTYPE DATA ; DIPLOID MALE PRODUCTION ; DESERT BEE ; LINKAGE DISEQUILIBRIUM ; DIFFERENTIATION ; SPECIALIZATION ; CONSERVATION ; EXTINCTION ; INFERENCE |
WOS类目 | Ecology ; Evolutionary Biology ; Genetics & Heredity |
WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology ; Genetics & Heredity |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/154417 |
作者单位 | (1)York Univ, Dept Biol, Toronto, ON M3J 2R7, Canada |
推荐引用方式 GB/T 7714 | Zayed, A.,Packer, L.. The population genetics of a solitary oligolectic sweat bee, Lasioglossum (Sphecodogastra) oenotherae (Hymenoptera : Halictidae)[J],2007,99(4):397-405. |
APA | Zayed, A.,&Packer, L..(2007).The population genetics of a solitary oligolectic sweat bee, Lasioglossum (Sphecodogastra) oenotherae (Hymenoptera : Halictidae).HEREDITY,99(4),397-405. |
MLA | Zayed, A.,et al."The population genetics of a solitary oligolectic sweat bee, Lasioglossum (Sphecodogastra) oenotherae (Hymenoptera : Halictidae)".HEREDITY 99.4(2007):397-405. |
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