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Molecular systematics of the Brassicaceae: evidence from coding plastidic matK and nuclear Chs sequences.

Publication ,  Journal Article
Koch, M; Haubold, B; Mitchell-Olds, T
Published in: American journal of botany
March 2001

Phylogenetic relationships were inferred using nucleotide sequence variation of the nuclear-encoded chalcone synthase gene (Chs) and the chloroplast gene matK for members of five tribes from the family Brassicaceae to analyze tribal and subtribal structures. Phylogenetic trees from individual data sets are mostly in congruence with the results from a combined matK-Chs analysis with a total of 2721 base pairs, but with greater resolution and higher statistical support for deeper branching patterns. The analysis indicates that tribes Lepidieae, Arabideae, and Sisymbrieae are not monophyletic. Among taxa under study four different lineages each were detected in tribes Arabideae and Lepidieae, interspersed with taxa from tribes Sisymbrieae, Hesperideae, and Brassiceae. It is concluded that tribe Brassiceae might be the only monophyletic group of the traditional tribes. From our data we estimated several divergence times for different lineages among cruciferous plants: 5.8 mya (million years ago) for the Arabidopsis-Cardaminopsis split, 20 mya for the Brassica-Arabidopsis split, and ∼40 mya for the age of the deepest split between the most basal crucifer Aethionema and remaining cruciferous taxa.

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Published In

American journal of botany

DOI

EISSN

1537-2197

ISSN

1537-2197

Publication Date

March 2001

Volume

88

Issue

3

Start / End Page

534 / 544

Related Subject Headings

  • Evolutionary Biology
  • 3108 Plant biology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0607 Plant Biology
  • 0603 Evolutionary Biology
  • 0602 Ecology
 

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Koch, M., Haubold, B., & Mitchell-Olds, T. (2001). Molecular systematics of the Brassicaceae: evidence from coding plastidic matK and nuclear Chs sequences. American Journal of Botany, 88(3), 534–544. https://doi.org/10.2307/2657117
Koch, M., B. Haubold, and T. Mitchell-Olds. “Molecular systematics of the Brassicaceae: evidence from coding plastidic matK and nuclear Chs sequences.American Journal of Botany 88, no. 3 (March 2001): 534–44. https://doi.org/10.2307/2657117.
Koch M, Haubold B, Mitchell-Olds T. Molecular systematics of the Brassicaceae: evidence from coding plastidic matK and nuclear Chs sequences. American journal of botany. 2001 Mar;88(3):534–44.
Koch, M., et al. “Molecular systematics of the Brassicaceae: evidence from coding plastidic matK and nuclear Chs sequences.American Journal of Botany, vol. 88, no. 3, Mar. 2001, pp. 534–44. Epmc, doi:10.2307/2657117.
Koch M, Haubold B, Mitchell-Olds T. Molecular systematics of the Brassicaceae: evidence from coding plastidic matK and nuclear Chs sequences. American journal of botany. 2001 Mar;88(3):534–544.

Published In

American journal of botany

DOI

EISSN

1537-2197

ISSN

1537-2197

Publication Date

March 2001

Volume

88

Issue

3

Start / End Page

534 / 544

Related Subject Headings

  • Evolutionary Biology
  • 3108 Plant biology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0607 Plant Biology
  • 0603 Evolutionary Biology
  • 0602 Ecology