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DOI	10.1111/jpy.13147
	Trichotorquatus gen. nov. - a new genus of soil cyanobacteria discovered from American drylands
	Pietrasiak, Nicole; Reeve, Sharon; Osorio-Santos, Karina; Lipson, David A.; Johansen, Jeffrey R.
通讯作者	Pietrasiak, N (corresponding author), New Mexico State Univ, Plant & Environm Sci Dept, 945 Coll Dr, Las Cruces, NM 88003 USA.
来源期刊	JOURNAL OF PHYCOLOGY
ISSN	0022-3646
EISSN	1529-8817
出版年	2021
卷号	57 期号:3 页码:886-902
英文摘要	Cyanobacteria are crucial ecosystem components in dryland soils. Advances in describing alpha-level taxonomy are needed to understand what drives their abundance and distribution. We describe Trichotorquatus gen. nov. (Oculatellaceae, Synechococcales, Cyanobacteria) based on four new species isolated from dryland soils including the coastal sage scrub near San Diego, California (USA), the Mojave and Colorado Deserts with sites at Joshua Tree National Park and Mojave National Preserve, California (USA), and the Atacama Desert (Chile). The genus is morphologically characterized by having thin trichomes (<4.5 mu m wide), cells both shorter and longer than wide, rarely occurring single and double false branching, necridia appearing singly or in rows, and sheaths with a distinctive collar-like fraying and widening mid-filament, the feature for which the genus is named. The genus is morphologically nearly identical with Leptolyngbya sensu stricto but is phylogenetically quite distant from that genus. It is consequently a cryptic genus that will likely be differentiated in future studies based on 16S rRNA sequence data. The type species, T. maritimus sp. nov. is morphologically distinct from the other three species, T. coquimbo sp. nov., T. andrei sp. nov. and T. ladouxae sp. nov. However, these latter three species are morphologically very close and are considered by the authors to be cryptic species. All species are separated phylogenetically based on sequence of the 16S-23S ITS region. Three distinct ribosomal operons were recovered from the genus, lending difficulty to recognizing further diversity in this morphologically cryptic genus.
英文关键词	16S rRNA gene 16S‐ 23S ITS Atacama Desert biological soil crusts Coastal Sage Scrub cryptic genera cryptic species deserts Mojave Desert polyphasic approach
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000631403800001
WOS类目	Plant Sciences ; Marine & Freshwater Biology
WOS研究方向	Plant Sciences ; Marine & Freshwater Biology
来源机构	Universidad Nacional Autónoma de México ; New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350965
作者单位	[Pietrasiak, Nicole] New Mexico State Univ, Plant & Environm Sci Dept, 945 Coll Dr, Las Cruces, NM 88003 USA; [Reeve, Sharon; Lipson, David A.] San Diego State Univ, Dept Biol, 5500 Campanile Dr,Mail Code 4614, San Diego, CA 92182 USA; [Osorio-Santos, Karina] Univ Nacl Autonoma Mexico, Dept Biol Comparada, Codigo Postal 04451070474,POB 70-474, Ciuclid De Mexico, Mexico; [Johansen, Jeffrey R.] John Carroll Univ, Dept Biol, University Hts, OH 44118 USA; [Johansen, Jeffrey R.] Univ South Bohemia, Fac Sci, Dept Bot, Branisovska 31, Ceske Budejovice 37005, Czech Republic
推荐引用方式 GB/T 7714	Pietrasiak, Nicole,Reeve, Sharon,Osorio-Santos, Karina,et al. Trichotorquatus gen. nov. - a new genus of soil cyanobacteria discovered from American drylands[J]. Universidad Nacional Autónoma de México, New Mexico State University,2021,57(3):886-902.
APA	Pietrasiak, Nicole,Reeve, Sharon,Osorio-Santos, Karina,Lipson, David A.,&Johansen, Jeffrey R..(2021).Trichotorquatus gen. nov. - a new genus of soil cyanobacteria discovered from American drylands.JOURNAL OF PHYCOLOGY,57(3),886-902.
MLA	Pietrasiak, Nicole,et al."Trichotorquatus gen. nov. - a new genus of soil cyanobacteria discovered from American drylands".JOURNAL OF PHYCOLOGY 57.3(2021):886-902.