Monophyly of Kelloggia Torrey ex Benth. (Rubiaceae) and evolution of its intercontinental disjunction between western North America and eastern Asia
Nie, ZL; Wen, J; Sun, H; Bartholomew, B
Corresponding Authorhsun@mail.kib.ac.cn
2005-04-01
Source PublicationAMERICAN JOURNAL OF BOTANY
ISSN0002-9122
Volume92Issue:4Pages:642-652
AbstractKelloggia Torrey ex Bentham (Rubiaceae) consists of two species disjunctly distributed in western North America (K. galioides Torrey) and the western part of eastern Asia (K. chinensis Franch.). The two species exhibit a high level of morphological divergence. To test its monophyly and to infer its biogeographic history, we estimated the phylogeny of Kelloggia and its relatives from sequences of three chloroplast DNA regions (rbcL gene, atpB-rbcL spacer, and rps16 intron). The monophyly of Kelloggia was strongly Supported, and it forms a sister relationship with the tribe Rubieae. The divergence time between the two disjunct species of Kelloggia was estimated to be 5.42 +/- 2.32 million years ago (mya) using the penalized likelihood method based on rbcL sequence data with fossil calibration. Our result does not support the Madrean-Tethyan hypothesis, which assumes an earlier divergence time of 20-25 mya. Ancestral area analysis, as well as dispersal-vicariance (DIVA) analysis, suggests the Asian origin of Kelloggia and the importance of Eurasia in the diversification of its close relatives in the Rubieae-Theligoneae-Paederieae group. The intercontinental disjunction in Kelloggia is suggested to have evolved via long-distance dispersal from Asia into western North America.
KeywordDisjunction Eastern Asia Kelloggia Monophyly Rubiaceae Western North America
Subject AreaPlant Sciences
Indexed BySCI
Language英语
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000228126800008
Citation statistics
Cited Times:59[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/2823
Collection中国科学院东亚植物多样性与生物地理学重点实验室
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
2.Field Museum Nat Hist, Dept Bot, Chicago, IL 60605 USA
3.Chinese Acad Sci, Inst Bot, Lab Syst & Evolutionary Bot, Beijing 100093, Peoples R China
4.Calif Acad Sci, Dept Bot, San Francisco, CA 94118 USA
Recommended Citation
GB/T 7714
Nie, ZL,Wen, J,Sun, H,et al. Monophyly of Kelloggia Torrey ex Benth. (Rubiaceae) and evolution of its intercontinental disjunction between western North America and eastern Asia[J]. AMERICAN JOURNAL OF BOTANY,2005,92(4):642-652.
APA Nie, ZL,Wen, J,Sun, H,&Bartholomew, B.(2005).Monophyly of Kelloggia Torrey ex Benth. (Rubiaceae) and evolution of its intercontinental disjunction between western North America and eastern Asia.AMERICAN JOURNAL OF BOTANY,92(4),642-652.
MLA Nie, ZL,et al."Monophyly of Kelloggia Torrey ex Benth. (Rubiaceae) and evolution of its intercontinental disjunction between western North America and eastern Asia".AMERICAN JOURNAL OF BOTANY 92.4(2005):642-652.
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