Incongruence in Veroniceae (Plantaginaceae): evidence from two plastid and a nuclear ribosomal DNA region

被引：68

作者：

Albach, DC

Chase, MW

机构：

[1] Royal Bot Gardens, Jodrell Lab, Richmond TW9 3DS, Surrey, England

[2] Univ Vienna, Inst Bot, A-1030 Vienna, Austria

来源：

MOLECULAR PHYLOGENETICS AND EVOLUTION | 2004年 / 32卷 / 01期

基金：

奥地利科学基金会;

关键词：

hybridization; ITS; Picrorhiza; polyploidy; rps16; trnL-F; Veronicastrum; incongruence;

D O I：

10.1016/j.ympev.2003.12.001

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Nucleotide data from nuclear ribosomal and plastid DNA did not agree on all relationships within Veroniceae (Plantaginaccae) in previous analyses. We present here additional data from a second plastid DNA marker, the rps16 intron, and evaluate incongruence between the ribosomal and plastid DNA matrices. Based on these evaluations and analysis of secondary structure in ITS, we conclude that there is a biological cause for incongruence among the genera of Veroniceae. The sequence data imply a history of hybridization and polyploidization, in which ancestors of Wulfeniopsis and Veronica + Paederota gave rise to Picrorhiza and ancestors of Wulfeniopsis and Wulfenia gave rise to Veronicastrum. (C) 2003 Elsevier Inc. All rights reserved.

引用

页码：183 / 197

页数：15

共 53 条

[1] Paraphyly of Veronica (Veroniceae; Scrophulariaceae):: Evidence from the internal transcribed spacer (ITS) sequences of nuclear ribosomal DNA [J].