Phylogenetic relationships among southern South American species of Camptosema, Galactia and Collaea (Diocleinae: Papilionoideae: Leguminosae) on the basis of molecular and morphological data

SILVANA M. SEDE, DANIELA TOSTO, PAOLA TALIA , MELISSA LUCKOW, LIDIA POGGIO AND RENÉE FORTUNATO

AUSTRALIAN JOURNAL OF BOTANY

CSIRO PUBLISHING

Lugar: Australia; Año: 2009 vol. 57 p. 76 - 86

0067-1924

The neotropical genus Camptosema in its southern distribution is represented by the following four species:Ca. paraguariense, Ca. praeandinum, Ca. rubicundum and Ca. scarlatinum. Ca. rubicundum is the only species with allthe diagnostic characters of the genus, i.e. tubular calyx. The other three taxa are related morphologically and cytologicallyto Galactia and Collaea, two closely allied genera in the subtribe Diocleinae. Individual and combined phylogeneticanalyses of morphology, ITS and trnL-F were conducted to examine the position of these species as well as to explore theirrelationship with Galactia and Collaea species in southern South America. In none of the analyses does Camptosema speciesform a monophyletic group. Instead, they are scattered in different groups. These results together with cytological,morphological and AFLP data provide good support for re-evaluating the taxonomic position of these species withinCamptosema.