Molecular evidence for Pleistocene glacial cycles driving diversification of a North American desert spider, Agelenopsis aperta

被引:59
作者
Ayoub, NA [1 ]
Riechert, SE [1 ]
机构
[1] Univ Tennessee, Dept Ecol & Evolutionary Biol, Knoxville, TN 37996 USA
关键词
cytochrome oxidase I; fossil record; geological change; mitochondrial DNA; phylogeography; southwestern North America;
D O I
10.1111/j.1365-294X.2004.02335.x
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The influence of historical climatic vs. geological changes on species diversification patterns was investigated in a widely distributed North American desert spider, Agelenopsis aperta (Araneae: Agelenidae), with particular reference to Pleistocene glacial cycles and earlier patterns of mountain building. Levels of sequence divergence obtained from the mitochondrial gene, cytochrome oxidase I, dated to the Pleistocene, eliminating Rocky Mountain orogeny as a cause of diversification, as orogeny ended 4 million years ago. The results of phylogenetic and network analyses showed the presence of three geographically defined clades, which were consistent with the presence of at least three glacial refugia: (i) east of the Rocky Mountains; (ii) between the Rocky Mountains and Sierra Nevadas; and (iii) west of the Sierra Nevadas. In addition, populations within the Rocky Mountains exhibited significantly lower genetic diversity than populations east of the Rocky Mountains and the haplotypes found within the Rockies were a subset of eastern haplotypes. These patterns suggest that a post-Pleistocene range expansion occurred out of an eastern glacial refugium into the Rocky Mountains. Examination of phylogeographical studies of other North American desert taxa indicated that mountain building explained diversification patterns more effectively for some taxa but Pleistocene climate change was more important for others, including A. aperta.
引用
收藏
页码:3453 / 3465
页数:13
相关论文
共 67 条
[51]  
Swofford DL., 2002, PAUP 40B10
[52]  
TAJIMA F, 1989, GENETICS, V123, P585
[53]   ESTIMATION OF THE NUMBER OF NUCLEOTIDE SUBSTITUTIONS IN THE CONTROL REGION OF MITOCHONDRIAL-DNA IN HUMANS AND CHIMPANZEES [J].
TAMURA, K ;
NEI, M .
MOLECULAR BIOLOGY AND EVOLUTION, 1993, 10 (03) :512-526
[54]  
TEMPLETON AR, 1987, GENETICS, V117, P343
[55]  
TEMPLETON AR, 1995, GENETICS, V140, P767
[56]  
TEMPLETON AR, 1992, GENETICS, V132, P619
[57]  
TEMPLETON AR, 1993, GENETICS, V134, P659
[58]   Using phylogeographic analyses of gene trees to test species status and processes [J].
Templeton, AR .
MOLECULAR ECOLOGY, 2001, 10 (03) :779-791
[59]  
Van Devender ThomasR., 1987, The Geology of North America Vol. K-3, VK-3, P323, DOI DOI 10.1130/DNAG-GNA-K3.323
[60]   Stream incision, tectonics, uplift, and evolution of topography of the Sierra Nevada, California [J].
Wakabayashi, J ;
Sawyer, TL .
JOURNAL OF GEOLOGY, 2001, 109 (05) :539-562