Cladogenesis and reticulation in the Hawaiian endemic mints (Lamiaceae)

Author:

Lindqvist, Charlotte, Motley, Timothy J., Jeffrey, John J., Albert, Victor A.

Title:

Cladogenesis and reticulation in the Hawaiian endemic mints (Lamiaceae)

Periodical:

Cladistics

Year:

2003

Volume:

19

Pages:

480-495

Subject:

Lamiaceae Stenogyne rugosa Hawaiian mints

Summary:

This document describes how the endemic Hawaiian mints, that are made up of 58 species in three genera of dry-fruited Haplostachys and fleshly-fruited Phyllostegia and Stenogyne, represent a major island radiation that is believed to have originated from polyploid hybrid ancestors in the temperate North American Stachys lineage. This paper shows how these mints represent an example in which broad morphological and ecological variation is contrasted with a strikingly low level of DNA sequence divergence. In addition, based on a hypothesis that the Hawaiian mints are products of one or more polyploid hybridization events that involve bird and insect pollinated Western North American parents, this hypothesized hybridization event and its potential impact on the molecular phylogenetic relationship and evolutionary history among the Hawaiian genera, was explored during this study.

Label:

Botany

URL:

http://cletus.uhh.hawaii.edu:2074/10.1016/j.cladistics.2003.09.003

Date:

2003 December

Collection:

Periodicals