Seri Indian traditional knowledge and molecular biology agree: no express train for island-hopping spiny-tailed iguanas in the Sea of Cortes

CORC > 昆明动物研究所 > 昆明动物研究所 > 遗传资源与进化国家重点实验室 > 分子进化基因组学

	Seri Indian traditional knowledge and molecular biology agree: no express train for island-hopping spiny-tailed iguanas in the Sea of Cortes
	Davy CM[*]1,2; de la Cruz FRM 3; Lathrop A 3; Murphy RW 1,2,4
刊名	JOURNAL OF BIOGEOGRAPHY
	2011
卷号	38 期号:2 页码:272-284
关键词	Baja California Ctenosaura conspicuosa Ctenosaura hemilopha Ctenosaura nolascensis genealogy human-mediated dispersal Iguanidae
通讯作者	christina.davy@utoronto.ca
合作状况	其它
英文摘要	Aim The role of human activities in species biogeography can be difficult to identify, but in some cases molecular techniques can be used to test hypotheses of human-mediated dispersal. A currently accepted hypothesis states that humans mediated the divergence of two species of spiny-tailed iguanas in the Ctenosaura hemilopha species complex, namely C. conspicuosa and C. nolascensis, which occupy islands in the Sea of Cortes between the peninsula of Baja California and mainland Mexico. We test an alternative hypothesis that follows the traditional knowledge of the Seri Indians and states that the divergence of these species was not mediated by humans. Location Mexico, including Baja California, Sonoran and Sinaloan coastal regions, and Isla San Esteban and Isla San Pedro Nolasco in the Sea of Cortes. Methods We analysed mitochondrial (cytochrome b and cytochrome c oxidase subunit III) DNA sequences from four species in the C. hemilopha species complex. Maximum parsimony and Bayesian inference were used to infer matriarchal genealogical relationships between the species and several outgroup taxa. Bayesian methods were used to estimate divergence times for the major nodes on the trees based on previously published, fossil-calibrated priors. Results Our analysis indicated that lineages within the C. hemilopha species complex diverged long before human colonization of the Americas. The divergence of C. nolascensis and C. conspicuosa could not be attributed to Seri translocations. The matriarchal genealogy of the species complex currently defies a simple biogeographical interpretation. Main conclusions We conclude that humans did not mediate the divergence of C. nolascensis and C. conspicuosa. This conclusion is consistent with the traditional knowledge of the Seri people. These results demonstrate the utility of molecular techniques in investigating potential cases of human-mediated dispersal of plants and animals, and reinforce the importance of considering traditional knowledge in the formation of scientific hypotheses and the interpretation of results.
收录类别	SCI
资助信息	This research was supported by grants from the Natural Sciences and Engineer- ing Research Council of Canada, Discovery Grant A3148, the Royal Ontario Museum (ROM) Foundation, and the ROM Members Volunteer Committee to R.W.M.
语种	英语
公开日期	2011-03-14
内容类型	期刊论文
源URL	[http://159.226.149.42:8088/handle/353002/6571]
专题	昆明动物研究所_分子进化基因组学昆明动物研究所_遗传资源与进化国家重点实验室
作者单位	1.Department of Ecology and Evolutionary Biology, University of Toronto, 25 Wilcocks Street, Toronto, ON M5S 3B2, Canada 2.Department of Natural History, Royal Ontario Museum, 100 Queen’s Park, Toronto, ON M5S 2C6, Canada 3.Laboratorio de Herpetologı ´a, Instituto de Biologı ´a, Universidad Nacional Auto ´noma de Me ´xico, AP 70-153, CP 04510, Me ´xico, DF, Mexico 4.State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, The Chinese Academy of Sciences, Kunming 650223, China
推荐引用方式 GB/T 7714	Davy CM[*],de la Cruz FRM,Lathrop A,et al. Seri Indian traditional knowledge and molecular biology agree: no express train for island-hopping spiny-tailed iguanas in the Sea of Cortes[J]. JOURNAL OF BIOGEOGRAPHY,2011,38(2):272-284.
APA	Davy CM[*],de la Cruz FRM,Lathrop A,&Murphy RW.(2011).Seri Indian traditional knowledge and molecular biology agree: no express train for island-hopping spiny-tailed iguanas in the Sea of Cortes.JOURNAL OF BIOGEOGRAPHY,38(2),272-284.
MLA	Davy CM[*],et al."Seri Indian traditional knowledge and molecular biology agree: no express train for island-hopping spiny-tailed iguanas in the Sea of Cortes".JOURNAL OF BIOGEOGRAPHY 38.2(2011):272-284.