Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2016 Jan;209(2):855-70.
doi: 10.1111/nph.13617. Epub 2015 Sep 9.

Plastid genomes reveal support for deep phylogenetic relationships and extensive rate variation among palms and other commelinid monocots

Craig F Barrett  1   2 , William J Baker  3 , Jason R Comer  4 , John G Conran  5 , Sean C Lahmeyer  6 , James H Leebens-Mack  4 , Jeff Li  7 , Gwynne S Lim  8 , Dustin R Mayfield-Jones  9   10 , Leticia Perez  1 , Jesus Medina  1 , J Chris Pires  10 , Cristian Santos  1 , Dennis Wm Stevenson  11 , Wendy B Zomlefer  6 , Jerrold I Davis  8
Affiliations
Free article

Plastid genomes reveal support for deep phylogenetic relationships and extensive rate variation among palms and other commelinid monocots

Craig F Barrett et al. New Phytol. 2016 Jan.
Free article

Abstract

Despite progress based on multilocus, phylogenetic studies of the palms (order Arecales, family Arecaceae), uncertainty remains in resolution/support among major clades and for the placement of the palms among the commelinid monocots. Palms and related commelinids represent a classic case of substitution rate heterogeneity that has not been investigated in the genomic era. To address questions of relationships, support and rate variation among palms and commelinid relatives, 39 plastomes representing the palms and related family Dasypogonaceae were generated via genome skimming and integrated within a monocot-wide matrix for phylogenetic and molecular evolutionary analyses. Support was strong for 'deep' relationships among the commelinid orders, among the five palm subfamilies, and among tribes of the subfamily Coryphoideae. Additionally, there was extreme heterogeneity in the plastid substitution rates across the commelinid orders indicated by model based analyses, with c. 22 rate shifts, and significant departure from a global clock. To date, this study represents the most comprehensively sampled matrix of plastomes assembled for monocot angiosperms, providing genome-scale support for phylogenetic relationships of monocot angiosperms, and lays the phylogenetic groundwork for comparative analyses of the drivers and correlates of such drastic differences in substitution rates across a diverse and significant clade.

Keywords: Arecaceae; Palmae; Poaceae; chloroplast; phylogenomics; plastome; rate heterogeneity.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

Publication types

Associated data

LinkOut - more resources