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Titolo:
Phylogenetic relationships in the genus Leonardoxa (Leguminosae : Caesalpinioideae) inferred from chloroplast trnL intron and trnL-trnF intergenic spacer sequences
Autore:
Brouat, C; Gielly, L; McKey, D;
Indirizzi:
Ctr Ecol Fonct & Evolut, CNRS, UPR 9056, F-34293 Montpellier 5, France CtrEcol Fonct & Evolut Montpellier France 5 34293 Montpellier 5, France Univ Montpellier 2, Inst Sci Evolut, CNRS, UMR 5554, F-34095 Montpellier, France Univ Montpellier 2 Montpellier France F-34095 -34095 Montpellier, France Univ Grenoble 1, Lab Biol Populat Altitude, CNRS, UMR 5553, F-38041 Grenoble 9, France Univ Grenoble 1 Grenoble France 9 , UMR 5553, F-38041 Grenoble 9, France
Titolo Testata:
AMERICAN JOURNAL OF BOTANY
fascicolo: 1, volume: 88, anno: 2001,
pagine: 143 - 149
SICI:
0002-9122(200101)88:1<143:PRITGL>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
NONCODING REGIONS; DNA PHYLOGEOGRAPHY; UNIVERSAL PRIMERS; NUCLEAR; PLANTS; AMPLIFICATION; ASTERACEAE; RBCL; OAKS;
Keywords:
Caesalpinioideae; cpDNA; introgression; Leguminosae; Leonardoxa; myrmecophytes; phylogeny;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Brouat, C Ctr Ecol Fonct & Evolut, CNRS, UPR 9056, 1919 Route Mende, F-34293 Montpellier 5, France Ctr Ecol Fonct & Evolut 1919 Route Mende Montpellier France 5 e
Citazione:
C. Brouat et al., "Phylogenetic relationships in the genus Leonardoxa (Leguminosae : Caesalpinioideae) inferred from chloroplast trnL intron and trnL-trnF intergenic spacer sequences", AM J BOTANY, 88(1), 2001, pp. 143-149

Abstract

The African genus Leonardoxa (Leguminosae: Caesalpinioideae) comprises twoCongolean species and a group of four mostly allopatric subspecies principally located in Cameroon and clustered together in the L. africana complex. Leonardoxa provides a good opportunity to investigate the evolutionary history of ant-plant mutualisms, as it exhibits Various grades of ant-plant interactions from diffuse to obligate and symbiotic associations. We present in this paper the first molecular phylogenetic study of this genus. We sequenced both the chloroplast DNA trnL intron (677 aligned-base pairs [bp]) and trnL-trnF intergene spacer (598 aligned bp). Inferred phylogenetic relationships suggested first that the genus is paraphyletic. The L. africana complex is clearly separated from the two Congolean species, and the integrityof the genus is thus in question. In the L. africana complex, our data showed a lack of congruence between clades suggested by morphological and chloroplast characters. This, and the low lever of molecular divergence found between subspecies, suggests gene how and introgressive events in the L. africana complex.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 17:32:17