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Titolo:
EVOLUTION OF ANNUAL SPECIES OF THE GENUS MEDICAGO - A MOLECULAR PHYLOGENETIC APPROACH
Autore:
BENA G; PROSPERI JM; LEJEUNE B; OLIVIERI I;
Indirizzi:
UNIV MONTPELLIER 2,INST SCI EVOLUT,PL EUGENE BATAILLON,CC065 F-34095 MONTPELLIER 05 FRANCE INRA MONTPELLIER,LAB RESSOURCES GENET & AMELIORAT LUZERNES MEDITER F-34130 MAUGUIO FRANCE UNIV PARIS 11,INST BIOTECHNOL PLANTES F-91405 ORSAY FRANCE
Titolo Testata:
Molecular phylogenetics and evolution (Print)
fascicolo: 3, volume: 9, anno: 1998,
pagine: 552 - 559
SICI:
1055-7903(1998)9:3<552:EOASOT>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
NUCLEAR RIBOSOMAL DNA; CHARACTERS; MARKERS; MUREX;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
G. Bena et al., "EVOLUTION OF ANNUAL SPECIES OF THE GENUS MEDICAGO - A MOLECULAR PHYLOGENETIC APPROACH", Molecular phylogenetics and evolution (Print), 9(3), 1998, pp. 552-559

Abstract

We performed a molecular phylogenetic study based on the nuclear ribosomal internal and external transcribed spacer (ITS and ETS). Thirty-one annual Medicago species were included in the study, representing more than half of the genus and 85% of the annuals of the genus. Major incongruences were found between phylogenetic relationships and morphological classification of the genus. Morphological and cytological traits were mapped onto the phylogeny. The most parsimonious reconstruction suggested an ancestral spiny state and a recurrent transition from spiny to spineless state. From the ancestral state of 2n = 16, three loss events of chromosomes must have occurred leading to the same specific number of 14 chromosomes whereas species having 30 chromosomes forma monophyletic clade. (C) 1998 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/10/20 alle ore 02:26:08