干旱区生态环境知识资源中心(Arid): Infraspecific diversification of the star cloak fern (Notholaena standleyi) in the deserts of the United States and Mexico

Arid

DOI	10.1002/ajb2.1461
	Infraspecific diversification of the star cloak fern (Notholaena standleyi) in the deserts of the United States and Mexico
	Kwo, Tzu-Tong 1; Rothfels, Carl J.2,3; Melgoza-Castillo, Alicia 4; Pryer, Kathleen M.1; Windham, Michael D.1
通讯作者	Kwo, Tzu-Tong
来源期刊	AMERICAN JOURNAL OF BOTANY
ISSN	0002-9122
EISSN	1537-2197
出版年	2020
卷号	107 期号:4 页码:658-675
英文摘要	Premise Not all ferns grow in moist and shaded habitats. One well-known example is Notholaena standleyi, a species that thrives in deserts of the southwestern United States and Mexico. This species exhibits several chemotypes that differ in farina (flavonoid exudates) color and chemistry. By integrating data from molecular phylogenetics, cytology, biochemistry, and biogeography, we circumscribed the major evolutionary lineages within N. standleyi and reconstructed their diversification histories. Methods Forty-eight samples were selected from across the geographic distribution of N. standleyi. Phylogenetic relationships were inferred using four plastid and five nuclear markers. Ploidy levels were inferred using spore sizes calibrated by chromosome counts, and farina chemistry was compared using thin-layer chromatography. Results Four clades are recognized, three of which roughly correspond to previously recognized chemotypes. The diploid clades G and Y are found in the Sonoran and Chihuahuan deserts, respectively; they are estimated to have diverged in the Pleistocene, congruent with the postulated timing of climatological events separating these two deserts. Clade P/YG is tetraploid and partially overlaps the distribution of clade Y in the eastern Chihuahuan Desert. It is apparently confined to limestone, a geologic substrate rarely occupied by members of the other clades. The cryptic (C) clade, a diploid group known only from southern Mexico and highly disjunct from the other three clades, is newly recognized here. Conclusions Our results reveal a complex intraspecific diversification history of N. standleyi, traceable to a variety of evolutionary drivers including classic allopatry, parapatry with or without changes in geologic substrate, and sympatric divergence through polyploidization.
英文关键词	amplicon sequencing biogeography cheilanthoids farina flavonoids limestone missing diploids phylogenetics polyploid speciation Pteridaceae
类型	Article
语种	英语
国家	USA ; Mexico
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000524334400001
WOS关键词	EVOLUTION ; PTERIDACEAE ; DELIMITATION ; ALIGNMENT ; PATTERNS ; COMPLEX
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	University of California, Berkeley
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314002
作者单位	1.Duke Univ, Dept Biol, Durham, NC 27708 USA; 2.Univ Calif Berkeley, Univ Herbarium, Berkeley, CA 94720 USA; 3.Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 USA; 4.Univ Autonoma Chihuahua, Fac Zootecnia & Ecol, Chihuahua 31000, Chihuahua, Mexico
推荐引用方式 GB/T 7714	Kwo, Tzu-Tong,Rothfels, Carl J.,Melgoza-Castillo, Alicia,et al. Infraspecific diversification of the star cloak fern (Notholaena standleyi) in the deserts of the United States and Mexico[J]. University of California, Berkeley,2020,107(4):658-675.
APA	Kwo, Tzu-Tong,Rothfels, Carl J.,Melgoza-Castillo, Alicia,Pryer, Kathleen M.,&Windham, Michael D..(2020).Infraspecific diversification of the star cloak fern (Notholaena standleyi) in the deserts of the United States and Mexico.AMERICAN JOURNAL OF BOTANY,107(4),658-675.
MLA	Kwo, Tzu-Tong,et al."Infraspecific diversification of the star cloak fern (Notholaena standleyi) in the deserts of the United States and Mexico".AMERICAN JOURNAL OF BOTANY 107.4(2020):658-675.