干旱区生态环境知识资源中心(Arid): Phylogeny, origin and diversification of the Dasylirion genus based on matK and rbcL sequences

Arid

DOI	10.1017/S1479262122000181
	Phylogeny, origin and diversification of the Dasylirion genus based on matK and rbcL sequences
	Ortiz-Covarrubias, Yadhira C.; Monzerrath Orozco-Sifuentes, Martha; Mendoza-Rodriguez, Dulce, V; Villlarreal-Quintanilla, Jose A.; Martinez, Octavio; Hernandez-Godinez, Fernando; de Jesus Jauregui-Gonzalez, Maria; Humberto Reyes-Valdes, M.
通讯作者	Reyes-Valdés, MH
来源期刊	PLANT GENETIC RESOURCES-CHARACTERIZATION AND UTILIZATION
ISSN	1479-2621
EISSN	1479-263X
出版年	2022
卷号	20 期号:2 页码:108-115
英文摘要	The Dasylirion genus is highly represented in the arid and semi-arid regions of Mexico and USA, playing important ecological and economical roles. Inferring the evolutionary patterns of this group will eventually facilitate understanding biological phenomena and outlining conservation and usage strategies. We performed a molecular phylogenetic analysis based on two chloroplast DNA regions: maturase-K gene (matK) and the large subunit of ribulose-1,5-bisphosphate carboxylase gene (rbcL). We constructed a phylogenetic tree by maximum likelihood with GTR as the sequence substitution model and a relaxed clock, inferred diversification patterns by lineage through time and explored the diversification rates of Dasylirion by the Yule model. The study included 11 species of the genus, which represent 50% of all its known species. We used two calibration points to date the tree, one based on fossil records of Acorus gramineus, and the other on the estimated stem age of the Yucca genus. The combined sequences of the two partial genes comprised 1455 bp and 18 polymorphic sites. We estimated an average substitution rate of 0.0005 nucleotide per million years for the concatenated DNA sequences. The molecular dating analysis estimated that the Dasylirion genus appeared more than 5.46 million years ago, with a rate of diversification of 0.0466 net speciation events per million years. The estimated age represents a lower bound, since not all Dasylirion species are included. These findings are consistent with other origin and diversification hypotheses for arid-land Asparagaceae in the Mexican highlands as a result of geomorphological events in North America.
英文关键词	Dasylirion matK molecular dating rbcL speciation substitution rate
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000865972300001
WOS关键词	RATES ; DIOECY ; EVOLUTION
WOS类目	Plant Sciences ; Genetics & Heredity
WOS研究方向	Plant Sciences ; Genetics & Heredity
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393966
推荐引用方式 GB/T 7714	Ortiz-Covarrubias, Yadhira C.,Monzerrath Orozco-Sifuentes, Martha,Mendoza-Rodriguez, Dulce, V,et al. Phylogeny, origin and diversification of the Dasylirion genus based on matK and rbcL sequences[J],2022,20(2):108-115.
APA	Ortiz-Covarrubias, Yadhira C..,Monzerrath Orozco-Sifuentes, Martha.,Mendoza-Rodriguez, Dulce, V.,Villlarreal-Quintanilla, Jose A..,Martinez, Octavio.,...&Humberto Reyes-Valdes, M..(2022).Phylogeny, origin and diversification of the Dasylirion genus based on matK and rbcL sequences.PLANT GENETIC RESOURCES-CHARACTERIZATION AND UTILIZATION,20(2),108-115.
MLA	Ortiz-Covarrubias, Yadhira C.,et al."Phylogeny, origin and diversification of the Dasylirion genus based on matK and rbcL sequences".PLANT GENETIC RESOURCES-CHARACTERIZATION AND UTILIZATION 20.2(2022):108-115.