A molecular phylogeny of the Solanaceae

Abstract

A phylogeny of Solanaceae is presented based on the chloroplast DNA regions ndhF and trnLF. With 89 genera and 190 species included, this represents a nearly comprehensive genus-level sampling and provides a framework phylogeny for the entire family that helps integrate many previously-published phylogenetic studies within Solanaceae. The four genera comprising the family Goetzeaceae and the monotypic families Duckeodendraceae, Nolanaceae, and Sclerophylaceae, often recognized in traditional classifications, are shown to be included in Solanaceae. The current results corroborate previous studies that identify a monophyletic subfamily Solanoideae and the more inclusive "x = 12" clade, which includes Nicotiana and the Australian tribe Anthocercideae. These results also provide greater resolution among lineages within Solanoideae, confirming Jaltomata as sister to Solanum and identifying a clade comprised primarily of tribes Capsiceae (Capsicum and Lycianthes) and Physaleae. Stronger evidence also is provided for the inclusion of Capsicum within a paraphyletic Lycianthes. Solanaceae are a predominantly New World group, with several lineages represented on other continents. Apart from events within Solanum (for which sampling in this study is inadequate for biogeographic interpretations) the Old World representatives of Solanaceae can be accounted for by eight or nine dispersal events.

Genus identification of toxic plant by real-time PCR

“…There is a large difference in the ITS region among S. japonica, S. carniolica, S. parviflora, and S. lutescens in the NCBI database. Moreover, the molecular phylogeny of Solanaceae in chloroplast DNA supports that S. japonica is different from S. carniolica [34]; therefore, the primer pair of sco07F/sco08R can potentially specifically, detect S. japonica.…”

Phylogenetic analyses of nucleotide sequences confirm a unique plant intercontinental disjunction between tropical Africa, the Caribbean, and the Hawaiian Islands

“…They include the endemic genera Kokia Lewton (Malvaceae; Seelanan et al 1997) and Hesperomannia Gray (Asteraceae; Kim et al 1998;Keeley et al 2007), and more recently the Hawaiian lobeliads (Givnish et al 2009). Several molecular phylogenies support phylogenetic relationships between African lineages and clades with taxa from South America and the Caribbean Basin (e.g., Lavin and Beyra Matos 2008;Olmstead et al 2008;Salazar and Nixon 2008).…”

Assessing Genetic Diversity in Mexican Husk Tomato Species

“…A number of studies have been done using morphological data to characterize species, to study the systematics of some sections (Martínez 1998(Martínez , 1999aSeithe and Sullivan 1990;Sullivan 1985;Vargas-Ponce et al 1999, to determine the infrageneric taxonomy (Martínez 1999b), and to understand the phylogenetic relationships between Physalis and the genera related to the physaloid group (Axelius 1996;Estrada and Martínez 1999). Sequence data from part of the nuclear Waxy gene, the internal transcribed spacer of the nrDNA (ITS) and chloroplast regions (Martínez 1998;Whitson and Manos 2005) have also been used to address the phylogeny of Physalis, related genera, and the Solanaceae (Olmstead et al 2008).…”