Translator Disclaimer
1 January 2011 Color by Numbers: Nuclear Gene Phylogeny of Jaltomata (Solanaceae), Sister Genus to Solanum, Supports Three Clades Differing in Fruit Color
Author Affiliations +
Abstract

DNA sequences from the nuclear gene waxy were used to assess phylogenetic relationships within Jaltomata, a group of approximately 60 species from Central and South America. Phylogenetic analyses identify two primary groups: a morphologically diverse group from western South America, characterized by orange fruits, and a primarily Mesoamerican clade with black/purple fruit and little morphological diversity. We also identify an early-diverging lineage of Jaltomata species with red fruits, which is sister to the rest of the genus. Ancestral character state reconstruction supports a view of the common ancestor of the genus originating in South America and having rotate corollas similar to many species of Solanum. In addition, we infer independent colonizations of lomas habitats by Jaltomata species and show a correlation between red nectar production and campanulate floral form in multiple lineages, suggesting a common evolutionary syndrome related to pollination.

© Copyright 2011 by the American Society of Plant Taxonomists
Ryan J. Miller, Thomas Mione, Hanh-La Phan, and Richard G. Olmstead "Color by Numbers: Nuclear Gene Phylogeny of Jaltomata (Solanaceae), Sister Genus to Solanum, Supports Three Clades Differing in Fruit Color," Systematic Botany 36(1), 153-162, (1 January 2011). https://doi.org/10.1600/036364411X553243
Published: 1 January 2011
JOURNAL ARTICLE
10 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top