HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Supplementary Data Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (46) Citing Articles via Google Scholar Google Scholar Articles by Beilstein, M. A. Articles by Kellogg, E. A. Search for Related Content PubMed Articles by Beilstein, M. A. Articles by Kellogg, E. A. Agricola Articles by Beilstein, M. A. Articles by Kellogg, E. A.

Brassicaceae phylogeny and trichome evolution¹

³Department of Biology, University of Missouri–St. Louis, 1 University Boulevard, St. Louis, Missouri, 63121 USA; ⁴Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri, 63166-0299 USA

ABSTRACT

To estimate the evolutionary history of the mustard family (Brassicaceae or Cruciferae), we sampled 113 species, representing 101 of the roughly 350 genera and 17 of the 19 tribes of the family, for the chloroplast gene ndhF. The included accessions increase the number of genera sampled over previous phylogenetic studies by four-fold. Using parsimony, likelihood, and Bayesian methods, we reconstructed the phylogeny of the gene and used the Shimodaira–Hasegawa test (S–H test) to compare the phylogenetic results with the most recent tribal classification for the family. The resultant phylogeny allowed a critical assessment of variations in fruit morphology and seed anatomy, upon which the current classification is based. We also used the S–H test to examine the utility of trichome branching patterns for describing monophyletic groups in the ndhF phylogeny. Our phylogenetic results indicate that 97 of 114 ingroup accessions fall into one of 21 strongly supported clades. Some of these clades can themselves be grouped into strongly to moderately supported monophyletic groups. One of these lineages is a novel grouping overlooked in previous phylogenetic studies. Results comparing 30 different scenarios of evolution by the S–H test indicate that five of 12 tribes represented by two or more genera in the study are clearly polyphyletic, although a few tribes are not sampled well enough to establish para- or polyphyly. In addition, branched trichomes likely evolved independently several times in the Brassicaceae, although malpighiaceous and stellate trichomes may each have a single origin.

Key Words: Arabidopsis • Brassica • Brassicaceae • ndhF • phylogeny • Shimodaira–Hasegawa test • trichomes

This article has been cited by other articles:

				J. K. Conner, H. F. Sahli, and K. Karoly Tests of adaptation: functional studies of pollen removal and estimates of natural selection on anther position in wild radish Ann. Bot., June 1, 2009; 103(9): 1547 - 1556. [Abstract] [Full Text] [PDF]

				K. Mummenhoff, A. Polster, A. Muhlhausen, and G. Theissen Lepidium as a model system for studying the evolution of fruit development in Brassicaceae J. Exp. Bot., April 1, 2009; 60(5): 1503 - 1513. [Abstract] [Full Text] [PDF]

				M. A. Lysak, M. A. Koch, J. M. Beaulieu, A. Meister, and I. J. Leitch The Dynamic Ups and Downs of Genome Size Evolution in Brassicaceae Mol. Biol. Evol., January 1, 2009; 26(1): 85 - 98. [Abstract] [Full Text] [PDF]

				M. A. Beilstein, I. A. Al-Shehbaz, S. Mathews, and E. A. Kellogg Brassicaceae phylogeny inferred from phytochrome A and ndhF sequence data: tribes and trichomes revisited Am. J. Botany, October 1, 2008; 95(10): 1307 - 1327. [Abstract] [Full Text] [PDF]

				T. Mandakova and M. A. Lysak Chromosomal Phylogeny and Karyotype Evolution in x=7 Crucifer Species (Brassicaceae) PLANT CELL, October 1, 2008; 20(10): 2559 - 2570. [Abstract] [Full Text] [PDF]

				J. W. Busch, J. Sharma, and D. J. Schoen Molecular Characterization of Lal2, an SRK-Like Gene Linked to the S-Locus in the Wild Mustard Leavenworthia alabamica Genetics, April 1, 2008; 178(4): 2055 - 2067. [Abstract] [Full Text] [PDF]

				J. A. Bosch, K. Heo, M. K. Sliwinski, and D. A. Baum An exploration of LEAFY expression in independent evolutionary origins of rosette flowering in Brassicaceae Am. J. Botany, March 1, 2008; 95(3): 286 - 293. [Abstract] [Full Text] [PDF]

				R. D. C. Ortiz, E. A. Kellogg, and H. V. D. Werff Molecular phylogeny of the moonseed family (Menispermaceae): implications for morphological diversification Am. J. Botany, August 1, 2007; 94(8): 1425 - 1438. [Abstract] [Full Text] [PDF]

				M. E. Schranz, A. J. Windsor, B.-h. Song, A. Lawton-Rauh, and T. Mitchell-Olds Comparative Genetic Mapping in Boechera stricta, a Close Relative of Arabidopsis Plant Physiology, May 1, 2007; 144(1): 286 - 298. [Abstract] [Full Text] [PDF]

				M. A. Koch, C. Dobes, C. Kiefer, R. Schmickl, L. Klimes, and M. A. Lysak Supernetwork Identifies Multiple Events of Plastid trnF(GAA) Pseudogene Evolution in the Brassicaceae Mol. Biol. Evol., January 1, 2007; 24(1): 63 - 73. [Abstract] [Full Text] [PDF]

				C. D. Bailey, M. A. Koch, M. Mayer, K. Mummenhoff, S. L. O'Kane Jr, S. I. Warwick, M. D. Windham, and I. A. Al-Shehbaz Toward a Global Phylogeny of the Brassicaceae Mol. Biol. Evol., November 1, 2006; 23(11): 2142 - 2160. [Abstract] [Full Text] [PDF]

				E. A. Kellogg Progress and challenges in studies of the evolution of development J. Exp. Bot., October 1, 2006; 57(13): 3505 - 3516. [Abstract] [Full Text] [PDF]