Relationships within the Araceae: comparison of morphological patterns with molecular phylogenies.

Natalie, Cusimano and Josef, Bogner and Simon J., Mayo and Boyce, P.C and Wong, Sin Yeng and Michael, Hesse and Wilbert L. A., Hetterscheid and Richard C., Keating and Jim C., French (2011) Relationships within the Araceae: comparison of morphological patterns with molecular phylogenies. American Journal of Botany, 98 (4). pp. 1-15. ISSN 1537-2197


Download (489kB) | Preview
Official URL:


Premise of the study: The first family-wide molecular phylogeny of the Araceae, a family of about 3800 published species in 120 genera, became available in 1995, followed by a cladistic analysis of morpho-anatomical data in 1997. The most recent and comprehensive family-wide molecular phylogeny was published in 2008 and included species from 102 genera. We reanalyzed the molecular data with a more complete genus sampling and compared the resulting phylogeny with morphological and anatomical data, with a view to contributing to a new formal classification of the Araceae. • Methods: We analyzed 113 aroid genera and 4494 aligned nucleotides that resulted from adding 11 genera to the 2008 molecular matrix. We also analyzed 81 morphological characters in the context of the molecular phylogeny, using an extended version of the 1997 morpho-anatomical data set. • Key results: The resulting maximum-likelihood phylogeny is well resolved and supported, and most of the 44 larger clades also have morphological or anatomical synapomorphies as well as ecological or geographic cohesion. Of the 44 clades, 16 are here newly circumscribed and informally named. However, some relationships remain poorly supported within the Aroideae subfamily. The most problematic placement is Calla within Aroideae, which conflicts with the distribution of morphological, anatomical, and palynological character states. • Conclusions: The comparison of the molecular analysis with morphological and anatomical data presented here represents an important basis for a new formal classification for the Araceae and for the understanding of the evolution of this ancient family, a monocot group known in the fossil record from the early Cretaceous.

Item Type: Article
Uncontrolled Keywords: Araceae , Calla , character evolution , classification Lemnoideae , molecular phylogeny , phenotypic characterization , FSTS, 2011, Universiti Malaysia Sarawak, UNIMAS, universiti, university, Borneo, Malaysia, Sarawak, Kuching, Samarahan, IPTA, education, research
Subjects: Q Science > Q Science (General)
Q Science > QK Botany
S Agriculture > SB Plant culture
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Faculties, Institutes, Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 24 Apr 2015 01:59
Last Modified: 27 Jul 2015 07:19

Actions (For repository members only: login required)

View Item View Item