The black widow spider genus Latrodectus (Araneae: Theridiidae):: phylogeny, biogeography, and invasion history

被引：157

作者：

Garb, JE

González, A

Gillespie, RG

机构：

[1] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA

[2] CEPAVE, Fac Ciencias Nat & Museo, RA-1900 La Plata, Argentina

来源：

MOLECULAR PHYLOGENETICS AND EVOLUTION | 2004年 / 31卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/j.ympev.2003.10.012

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 spider genus Latrodectus includes the widely known black widows, notorious because of the extreme potency of their neurotoxic venom. The genus has a worldwide distribution and comprises 30 currently recognized species, the phylogenetic relationships of which were previously unknown. Several members of the genus are synanthropic, and are increasingly being detected in new localities, an occurrence attributed to human mediated movement. In particular, the nearly cosmopolitan range of the brown widow, Latrodectus geometricus, is a suspected consequence of human transport. Although the taxonomy of the genus has been examined repeatedly, the recognition of taxa within Latrodectus has long been considered problematic due to the difficulty associated with identifying morphological features exhibiting discrete geographic boundaries. This paper presents, to our knowledge, the first phylogenetic hypothesis for the Latrodectus genus and is generated from DNA sequences of the mitochondrial gene cytochrome c oxidase subunit I. We recover two well-supported reciprocally monophyletic clades within the genus: (1) the geometricus clade, consisting of Latrodectus rhodesiensis from Africa, and its is sister species, the cosmopolitan L. geometricus, and (2) the mactans clade containing all other Latrodectus species sampled, including taxa occurring in Africa, the Middle East, Iberian Peninsula, Australia, New Zealand, and North and South America. Recovery of the geometricus and mactans clades is consistent with previous designations of species groups within the genus based on female genitalic morphology. All L. geometricus sampled, consisting of specimens from Africa, Argentina, North America, and Hawaii, were recovered as a strongly supported monophyletic group with minimal amounts of genetic divergence, corroborating the hypothesis that human transport has recently expanded the range of this species. (C) 2003 Elsevier Inc. All rights reserved.

引用

页码：1127 / 1142

页数：16

共 83 条

[11] Multiple sources of character information and the phylogeny of Hawaiian Drosophilids [J].

Baker, RH ;

DeSalle, R .

SYSTEMATIC BIOLOGY, 1997, 46 (04) :654-673

[12]

Bond JE, 2002, EVOLUTION, V56, P1123

[13] Deep molecular divergence in the absence of morphological and ecological change in the Californian coastal dune endemic trapdoor spider Aptostichus simus [J].

Bond, JE ;

Hedin, MC ;

Ramirez, MG ;

Opell, BD .

MOLECULAR ECOLOGY, 2001, 10 (04) :899-910

[14]

BREMER K, 1988, EVOLUTION, V42, P795, DOI [10.2307/2408870, 10.1111/j.1558-5646.1988.tb02497.x]

[15]

Bristowe W. S., 1946, Entomologist's Monthly Magazine, V82, P54

[16]

CAMBERLIN RV, 1935, B U UTAH, V25, P1

[17]

CAMBRIDGE FOP, 1902, ANN MAGAZINE NAT HIS, V7, P38

[18]

Cambridge FP, 1902, P ZOOL SOC LOND, V1902, P247

[19]

CAMBRIDGE OP, 1871, T LINN SOC LOND, V27, P393

[20]

CAMBRIDGE OP, 1879, ARANEIDEA P DORSET N, V1, P1

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