Arid
DOI10.3732/ajb.1200373
DEEP SEQUENCING OF AMPLICONS REVEALS WIDESPREAD INTRASPECIFIC HYBRIDIZATION AND MULTIPLE ORIGINS OF POLYPLOIDY IN BIG SAGEBRUSH (ARTEMISIA TRIDENTATA; ASTERACEAE)
Richardson, Bryce A.1; Page, Justin T.2; Bajgain, Prabin2,3; Sanderson, Stewart C.1; Udall, Joshua A.2
通讯作者Richardson, Bryce A.
来源期刊AMERICAN JOURNAL OF BOTANY
ISSN0002-9122
EISSN1537-2197
出版年2012
卷号99期号:12页码:1962-1975
英文摘要

Premise of the study: Hybridization has played an important role in the evolution and ecological adaptation of diploid and polyploid plants. Artemisia tridentata (Asteraceae) tetraploids are extremely widespread and of great ecological importance. These tetraploids are often taxonomically identified as A. tridentata subsp. wyomingensis or as autotetraploids of diploid subspecies tridentata and vaseyana. Few details are available as to how these tetraploids are formed or how they are related to diploid subspecies.


Methods: We used amplicon sequencing to assess phylogenetic relationships among three recognized subspecies: tridentata, vaseyana, and wyomingensis. DNA sequence data from putative genes were pyrosequenced and assembled from 329 samples. Nucleotide diversity and putative haplotypes were estimated from the high-read coverage. Phylogenies were constructed from Bayesian coalescence and neighbor-net network analyses.


Key results: Analyses support distinct diploid subspecies of tridentata and vaseyana in spite of known hybridization in ecotones. Nucleotide diversity estimates of populations compared to the total diversity indicate the relationships are predominately driven by a small proportion of the amplicons. Tetraploids, including subspecies wyomingensis, are polyphyletic occurring within and between diploid subspecies groups.


Conclusions: Artemisia tridentata is a species comprising phylogenetically distinct diploid progenitors and a tetraploid complex with varying degrees of phylogenetic and morphological affinities to the diploid subspecies. These analyses suggest tetraploids are formed locally or regionally from diploid tridentata and vaseyana populations via autotetraploidy, followed by introgression between tetraploid groups. Understanding the phylogenetic vs. ecological relationships of A. tridentata subspecies will have bearing on how to restore these desert ecosystems.


英文关键词Artemesia tridentata Asteraceae gene discordance haplotype clustering networks phylogeny pyrosequencing reticulate evolution
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000312951600020
WOS关键词NARROW HYBRID ZONE ; SUBGENUS TRIDENTATAE ; PHYLOGENETIC ANALYSIS ; MAXIMUM-LIKELIHOOD ; EVOLUTIONARY ; SELECTION ; AUTOPOLYPLOIDY ; BRASSICACEAE ; SPECIATION ; ADAPTATION
WOS类目Plant Sciences
WOS研究方向Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/171131
作者单位1.US Forest Serv, Rocky Mt Res Stn, USDA, Provo, UT 84606 USA;
2.Brigham Young Univ, Plant & Wildlife Sci Dept, Provo, UT 84602 USA;
3.Univ Minnesota, Dept Agron & Plant Genet, St Paul, MN 55108 USA
推荐引用方式
GB/T 7714
Richardson, Bryce A.,Page, Justin T.,Bajgain, Prabin,et al. DEEP SEQUENCING OF AMPLICONS REVEALS WIDESPREAD INTRASPECIFIC HYBRIDIZATION AND MULTIPLE ORIGINS OF POLYPLOIDY IN BIG SAGEBRUSH (ARTEMISIA TRIDENTATA; ASTERACEAE)[J],2012,99(12):1962-1975.
APA Richardson, Bryce A.,Page, Justin T.,Bajgain, Prabin,Sanderson, Stewart C.,&Udall, Joshua A..(2012).DEEP SEQUENCING OF AMPLICONS REVEALS WIDESPREAD INTRASPECIFIC HYBRIDIZATION AND MULTIPLE ORIGINS OF POLYPLOIDY IN BIG SAGEBRUSH (ARTEMISIA TRIDENTATA; ASTERACEAE).AMERICAN JOURNAL OF BOTANY,99(12),1962-1975.
MLA Richardson, Bryce A.,et al."DEEP SEQUENCING OF AMPLICONS REVEALS WIDESPREAD INTRASPECIFIC HYBRIDIZATION AND MULTIPLE ORIGINS OF POLYPLOIDY IN BIG SAGEBRUSH (ARTEMISIA TRIDENTATA; ASTERACEAE)".AMERICAN JOURNAL OF BOTANY 99.12(2012):1962-1975.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Richardson, Bryce A.]的文章
[Page, Justin T.]的文章
[Bajgain, Prabin]的文章
百度学术
百度学术中相似的文章
[Richardson, Bryce A.]的文章
[Page, Justin T.]的文章
[Bajgain, Prabin]的文章
必应学术
必应学术中相似的文章
[Richardson, Bryce A.]的文章
[Page, Justin T.]的文章
[Bajgain, Prabin]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。