@article {Alexander:2013:0363-6445:192,
title = "Molecular Phylogenetics and Taxonomy of the Genus Boechera and Related Genera (Brassicaceae: Boechereae)",
journal = "Systematic Botany",
parent_itemid = "infobike://aspt/sb",
publishercode ="aspt",
year = "2013",
volume = "38",
number = "1",
publication date ="2013-03-01T00:00:00",
pages = "192-209",
itemtype = "ARTICLE",
issn = "0363-6445",
eissn = "1548-2324",
url = "https://www.ingentaconnect.com/content/aspt/sb/2013/00000038/00000001/art00023",
doi = "doi:10.1600/036364413X661917",
keyword = "hybrid speciation, cytonuclear incongruence, Yosemitea, molecular systematics, Borodinia, low-copy nuclear loci",
author = "Alexander, Patrick J. and Windham, Michael D. and Beck, James B. and Al-Shehbaz, Ihsan A. and Allphin, Loreen and Bailey, C. Donovan",
abstract = "
Abstract
Boechera (Brassicaceae) is a diverse genus of \textpm 70 sexual diploid species and numerous apomictic hybrids concentrated in western North America. It is the largest genus in tribe Boechereae, which also includes seven other small genera. Boechera
is closely related to Arabidopsis and is becoming a model genus for diverse studies, focusing particularly on apomixis and hybrid speciation. As part of an ongoing effort to clarify the taxonomy of the group, we present phylogenetic analyses of Boechereae, including all genera of the
tribe and most of the sexual diploid species of Boechera. Ten loci are used, including two plastid loci, nrDNA ITS, and seven low-copy nuclear loci. These analyses indicate that Boechera, as currently circumscribed, is polyphyletic, comprising three main clades. Eastern North
American species previously assigned to Boechera form a distinct clade with the Asian taxon Borodinia macrophylla and are herein transferred to the genus Borodinia, resulting in seven new combinations (
Borodinia burkii
, 
Borodinia canadensis
,
Borodinia dentata
, 
Borodinia laevigata
, 
Borodinia missouriensis
, 
Borodinia perstellata
, and 
Borodinia serotina
). Boechera repanda, a morphologically aberrant species endemic to the Sierra Nevada, is recognized in
the new genus 
Yosemitea
(as 
Yosemitea repanda
). A primarily western North American clade comprising all remaining species is strongly supported and retains the name Boechera. Although resolution within Boechera sensu stricto is limited, a number of
well-supported clades are identified.",
}