Organellomic data sets confirm a cryptic consensus on (unrooted) land-plant relationships and provide new insights into bryophyte molecular evolution

doi:10.1002/ajb2.1418

	Organellomic data sets confirm a cryptic consensus on (unrooted) land-plant relationships and provide new insights into bryophyte molecular evolution
	Del Rio, Cedric 1,2; Wang, Teng-Xiang 1,3; Liu, Jia 1,2; Liang, Shui-Qing 1,4; Spicer, Robert A.1,5; Wu, Fei-Xiang 6; Zhou, Zhe-Kun1,2,7 ; Su, Tao 1,2,3
通讯作者	Su, Tao(sutao@xtbg.org.cn)
	2020
发表期刊	AMERICAN JOURNAL OF BOTANY
ISSN	0002-9122
卷号	107 期号:1 页码:126-138
摘要	Premise Phylogenetic trees of bryophytes provide important evolutionary context for land plants. However, published inferences of overall embryophyte relationships vary considerably. We performed phylogenomic analyses of bryophytes and relatives using both mitochondrial and plastid gene sets, and investigated bryophyte plastome evolution. Methods We employed diverse likelihood-based analyses to infer large-scale bryophyte phylogeny for mitochondrial and plastid data sets. We tested for changes in purifying selection in plastid genes of a mycoheterotrophic liverwort (Aneura mirabilis) and a putatively mycoheterotrophic moss (Buxbaumia), and compared 15 bryophyte plastomes for major structural rearrangements. Results Overall land-plant relationships conflict across analyses, generally weakly. However, an underlying (unrooted) four-taxon tree is consistent across most analyses and published studies. Despite gene coverage patchiness, relationships within mosses, liverworts, and hornworts are largely congruent with previous studies, with plastid results generally better supported. Exclusion of RNA edit sites restores cases of unexpected non-monophyly to monophyly for Takakia and two hornwort genera. Relaxed purifying selection affects multiple plastid genes in mycoheterotrophic Aneura but not Buxbaumia. Plastid genome structure is nearly invariant across bryophytes, but the tufA locus, presumed lost in embryophytes, is unexpectedly retained in several mosses. Conclusions A common unrooted tree underlies embryophyte phylogeny, [(liverworts, mosses), (hornworts, vascular plants)]; rooting inconsistency across studies likely reflects substantial distance to algal outgroups. Analyses combining genomic and transcriptomic data may be misled locally for heavily RNA-edited taxa. The Buxbaumia plastome lacks hallmarks of relaxed selection found in mycoheterotrophic Aneura. Autotrophic bryophyte plastomes, including Buxbaumia, hardly vary in overall structure.
关键词	Anthocerotophyta (hornworts) Bryophyta (mosses) embryophyte relationships long-branch outgroups Marchantiophyta (liverworts) mycoheterotrophic bryophytes organellar evolution phylogenetic incongruence RNA editing tree rooting
DOI	10.1002/ajb2.1418
收录类别	SCI ; SCI
语种	英语
WOS记录号	WOS:000509506800011
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/70641
专题	中国科学院东亚植物多样性与生物地理学重点实验室
通讯作者	Su, Tao
作者单位	1.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China 2.Chinese Acad Sci, Ctr Conservat Biol Econ Bot Plant Ecol, Core Bot Gardens, Mengla 666303, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Publ Technol Serv Ctr, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China 5.Open Univ, Sch Environm Earth & Ecosyst Sci, Milton Keynes MK7 6AA, Bucks, England 6.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 7.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Del Rio, Cedric,Wang, Teng-Xiang,Liu, Jia,et al. Organellomic data sets confirm a cryptic consensus on (unrooted) land-plant relationships and provide new insights into bryophyte molecular evolution[J]. AMERICAN JOURNAL OF BOTANY,2020,107(1):126-138.
APA	Del Rio, Cedric.,Wang, Teng-Xiang.,Liu, Jia.,Liang, Shui-Qing.,Spicer, Robert A..,...&Su, Tao.(2020).Organellomic data sets confirm a cryptic consensus on (unrooted) land-plant relationships and provide new insights into bryophyte molecular evolution.AMERICAN JOURNAL OF BOTANY,107(1),126-138.
MLA	Del Rio, Cedric,et al."Organellomic data sets confirm a cryptic consensus on (unrooted) land-plant relationships and provide new insights into bryophyte molecular evolution".AMERICAN JOURNAL OF BOTANY 107.1(2020):126-138.