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Citation for Study 177

About Citation title: "Cladistic analysis of chloroplast DNA restriction site characters in Andira (Leguminosae: Dalbergieae).".
About This study was previously identified under the legacy study ID S2x3x96c13c29c27 (Status: Published).


Pennington R. 1995. Cladistic analysis of chloroplast DNA restriction site characters in Andira (Leguminosae: Dalbergieae). American Journal of Botany, 82: 526-534.


  • Pennington R.


Chloroplast DNA (cpDNA) restriction site variation was examined in 29 accessions, representing 29 populations of 17 species of Andira (Leguminosae, Papilionoideae, tribe Dalbergieae). This sample spans the morphological and geographical diversity of this poorly known, woody genus of approximately 30 species, which occurs throughout the neotropics, with one species in Africa. Cladistic analysis of 38 restriction site characters generated 182 equally most-parsimonious trees. The strict consensus tree preserved four well-supported clades, which are incongruent with previous infrageneric classifications of Andira. None of these clades has been recognized by previous workers, and three are not marked by any major morphological innovations. There were few restriction site differences between closely related species, but two (possibly three) species showed intraspecific cpDNA polymorphism, which probably reflects processes of hybridization with subsequent introgression, or lineage sorting.

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