eprintid: 22679
rev_number: 11
eprint_status: archive
userid: 1589
dir: disk0/00/02/26/79
datestamp: 2017-02-22 08:26:25
lastmod: 2024-04-17 20:29:12
status_changed: 2017-02-22 08:26:25
type: article
metadata_visibility: show
creators_name: Guo, Xinyi
creators_name: Liu, Jianquan
creators_name: Hao, Guoqian
creators_name: Zhang, Lei
creators_name: Mao, Kangshan
creators_name: Wang, Xiaojuan
creators_name: Zhang, Dan
creators_name: Ma, Tao
creators_name: Hu, Quanjun
creators_name: Al-Shehbaz, Ihsan A.
creators_name: Koch, Marcus A.
title: Plastome phylogeny and early diversification of Brassicaceae
subjects: ddc-570
divisions: i-721000
abstract: Background: The family Brassicaceae encompasses diverse species, many of which have high scientific and economic importance. Early diversifications and phylogenetic relationships between major lineages or clades remain unclear. Here we re-investigate Brassicaceae phylogeny with complete plastomes from 51 species representing all four lineages or 5 of 6 major clades (A, B, C, E and F) as identified in earlier studies.   Results: Bayesian and maximum likelihood phylogenetic analyses using a partitioned supermatrix of 77 protein coding genes resulted in nearly identical tree topologies exemplified by highly supported relationships between clades. All four lineages were well identified and interrelationships between them were resolved. The previously defined Clade C was found to be paraphyletic (the genus Megadenia formed a separate lineage), while the remaining clades were monophyletic. Clade E (lineage III) was sister to clades B + C rather than to all core Brassicaceae (clades A + B + C or lineages I + II), as suggested by a previous transcriptome study. Molecular dating based on plastome phylogeny supported the origin of major lineages or clades between late Oligocene and early Miocene, and the following radiative diversification across the family took place within a short timescale. In addition, gene losses in the plastomes occurred multiple times during the evolutionary diversification of the family.   Conclusions: Plastome phylogeny illustrates the early diversification of cruciferous species. This phylogeny will facilitate our further understanding of evolution and adaptation of numerous species in the model family Brassicaceae.
date: 2017
publisher: BioMed Central; Springer
id_scheme: DOI
ppn_swb: 1657469840
own_urn: urn:nbn:de:bsz:16-heidok-226793
language: eng
bibsort: GUOXINYIPLASTOMEPH2017
full_text_status: public
publication: BMC Genomics
volume: 18
number: 176
place_of_pub: London; Berlin; Heidelberg
pagerange: 1-9
issn: 1471-2164
citation:   Guo, Xinyi ; Liu, Jianquan ; Hao, Guoqian ; Zhang, Lei ; Mao, Kangshan ; Wang, Xiaojuan ; Zhang, Dan ; Ma, Tao ; Hu, Quanjun ; Al-Shehbaz, Ihsan A. ; Koch, Marcus A.  (2017) Plastome phylogeny and early diversification of Brassicaceae.  BMC Genomics, 18 (176).  pp. 1-9.  ISSN 1471-2164     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/22679/1/12864_2017_Article_3555.pdf