TY - JOUR
T1 - The phylogeny of yuccas
AU - Pellmyr, Olle
AU - Segraves, Kari A.
AU - Althoff, David M.
AU - Balcázar-Lara, Manuel
AU - Leebens-Mack, James
N1 - Funding Information:
Field work was funded by the National Geographic Society, and field and lab work by Grants DEB 0242783 and DEB 0321293 from the National Science Foundation. Computing facilities were supported by NIH Grants P20RR016454 and P20RR016448 from the INBRE and COBRE Programs of the National Center for Research Resources.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2007/5
Y1 - 2007/5
N2 - The genus Yucca is widely recognized for its pollination mutualism with yucca moths. Analysis of diversification in this interaction has been hampered by the lack of a robust phylogeny for the genus. Here we attempt the first extensive nuclear DNA based assessment of the phylogenetic relationships of Yucca. We used AFLP markers to recover the phylogeny of 87 samples representing 38 Yucca taxa. An analysis based on 4322 markers strongly supported a topology consistent with morphological classification at the section level (capsular-fruited Chaenocarpa, fleshy-fruited Sarcocarpa, and spongy-fruited Clistocarpa). Within Sarcocarpa, all but two of the traditional species were monophyletic. Within Chaenocarpa, the morphologically distinct series Rupicolae was strongly supported. In the remaining Chaenocarpa, a western group (Colorado Plateau southward) and an eastern group (Great Plains, central Texas east to Florida) were recovered. Within these groups, where taxonomic circumscriptions are narrow and historically contested, there was at most limited monophyly of traditional taxa, suggesting rapid recent diversification, introgression, or non-monophyletically circumscribed taxa.
AB - The genus Yucca is widely recognized for its pollination mutualism with yucca moths. Analysis of diversification in this interaction has been hampered by the lack of a robust phylogeny for the genus. Here we attempt the first extensive nuclear DNA based assessment of the phylogenetic relationships of Yucca. We used AFLP markers to recover the phylogeny of 87 samples representing 38 Yucca taxa. An analysis based on 4322 markers strongly supported a topology consistent with morphological classification at the section level (capsular-fruited Chaenocarpa, fleshy-fruited Sarcocarpa, and spongy-fruited Clistocarpa). Within Sarcocarpa, all but two of the traditional species were monophyletic. Within Chaenocarpa, the morphologically distinct series Rupicolae was strongly supported. In the remaining Chaenocarpa, a western group (Colorado Plateau southward) and an eastern group (Great Plains, central Texas east to Florida) were recovered. Within these groups, where taxonomic circumscriptions are narrow and historically contested, there was at most limited monophyly of traditional taxa, suggesting rapid recent diversification, introgression, or non-monophyletically circumscribed taxa.
KW - AFLP
KW - Coevolution
KW - Obligate pollination mutualism
KW - Phylogeny
KW - Yucca
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U2 - 10.1016/j.ympev.2006.12.015
DO - 10.1016/j.ympev.2006.12.015
M3 - Article
C2 - 17289405
AN - SCOPUS:34247871321
SN - 1055-7903
VL - 43
SP - 493
EP - 501
JO - Molecular Phylogenetics and Evolution
JF - Molecular Phylogenetics and Evolution
IS - 2
ER -