Geographical diversification of the genus Cicer (Leguminosae: Papilionoideae) inferred from molecular phylogenetic analyses of chloroplast and nuclear DNA sequences

Firouzeh Javadi, Martin F. Wojciechowski, Hirofumi Yamaguchi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Cicer L. (Leguminosae: Papilionoideae) consists of 42 species of herbaceous or semi-shrubby annuals and perennials distributed throughout the temperate zones of the Northern Hemisphere. The origin and geographical relationships of the genus are poorly understood. We studied the geographical diversification and phylogenetic relationships of Cicer using DNA sequence data sampled from two plastid regions, trnK/matK and trnS-trnG, and two nuclear regions, the internal transcribed spacer (ITS) and external transcribed spacer (ETS) regions of nuclear ribosomal DNA, from 30 species. The results from the phylogenetic analyses of combined nuclear and chloroplast sequence data revealed four well-supported geographical groups: a Middle Eastern group, a West-Central Asian group, an Aegean-Mediterranean group, and an African group. Age estimates for Cicer based on methods that do not assume a molecular clock (for example, penalized likelihood) demonstrate that the genus has a Mediterranean origin with considerable diversification in the Miocene/Pliocene epochs. Geological events, such as mountain orogenesis and environmental changes, are major factors for the dispersal of Cicer species. The early divergence of African species and their geographically distinct region in the genus suggest a broader distribution pattern of the genus in the past than at present.

Original languageEnglish
Pages (from-to)175-186
Number of pages12
JournalBotanical Journal of the Linnean Society
Volume154
Issue number2
DOIs
Publication statusPublished - Jun 1 2007
Externally publishedYes

Fingerprint

Cicer
Faboideae
chloroplast DNA
chloroplast
nuclear genome
Fabaceae
phylogenetics
nucleotide sequences
DNA
phylogeny
plastid
temperate zones
orogeny
ribosomal DNA
internal transcribed spacers
plastids
Northern Hemisphere
environmental change
Pliocene
chloroplasts

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Plant Science

Cite this

Geographical diversification of the genus Cicer (Leguminosae : Papilionoideae) inferred from molecular phylogenetic analyses of chloroplast and nuclear DNA sequences. / Javadi, Firouzeh; Wojciechowski, Martin F.; Yamaguchi, Hirofumi.

In: Botanical Journal of the Linnean Society, Vol. 154, No. 2, 01.06.2007, p. 175-186.

Research output: Contribution to journalArticle

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