干旱区生态环境知识资源中心(Arid): Plant ecological genomics at the limits of life in the Atacama Desert

Arid

DOI	10.1073/pnas.210117711811of11
	Plant ecological genomics at the limits of life in the Atacama Desert
	Eshel, Gil; Araus, Viviana; Undurraga, Soledad; Soto, Daniela C.; Moraga, Carol; Montecinos, Alejandro; Moyano, Tomas; Maldonado, Jonathan; Diaz, Francisca P.; Varala, Kranthi; Nelson, Chase W.; Contreras-Lopez, Orlando; Pal-Gabor, Henrietta; Kraiser, Tatiana; Carrasco-Puga, Gabriela; Nilo-Poyanco, Ricardo; Zegar, Charles M.; Orellana, Ariel; Montecino, Martin; Maass, Alejandro; Allende, Miguel L.; DeSalle, Robert; Stevenson, Dennis W.; Gonzalez, Mauricio; Latorre, Claudio; Coruzzi, Gloria M.; Gutierrez, Rodrigo A.
通讯作者	Coruzzi, GM (corresponding author), NYU, Ctr Genom & Syst Biol, Dept Biol, New York, NY 10003 USA. ; Gutierrez, RA (corresponding author), Pontificia Univ Catolica Chile, Agencia Nacl Invest & Desarrollo ANID, Millennium Sci Initiat Program,Fac Ciencias Biol, Millennium Inst Integrat Biol iBio,Dept Genet Mol, Santiago 7500565, Chile.
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN	0027-8424
EISSN	1091-6490
出版年	2021
卷号	118 期号:46
英文摘要	The Atacama Desert in Chile-hyperarid and with high-ultraviolet irradiance levels-is one of the harshest environments on Earth. Yet, dozens of species grow there, including Atacama-endemic plants. Herein, we establish the Talabre-Leji = a transect (TLT) in the Atacama as an unparalleled natural laboratory to study plant adaptation to extreme environmental conditions. We characterized climate, soil, plant, and soil-microbe diversity at 22 sites (every 100 m of altitude) along the TLT over a 10-y period. We quantified drought, nutrient deficiencies, large diurnal temperature oscillations, and pH gradients that define three distinct vegetational belts along the altitudinal cline. We deep-sequenced transcriptomes of 32 dominant plant species spanning the major plant clades, and assessed soil microbes by metabarcoding sequencing. The top-expressed genes in the 32 Atacama species are enriched in stress responses, metabolism, and energy production. Moreover, their root-associated soils are enriched in growthpromoting bacteria, including nitrogen fixers. To identify genes associated with plant adaptation to harsh environments, we compared 32 Atacama species with the 32 closest sequenced species, comprising 70 taxa and 1,686,950 proteins. To perform phylogenomic reconstruction, we concatenated 15,972 ortholog groups into a supermatrix of 8,599,764 amino acids. Using two codonbased methods, we identified 265 candidate positively selected genes (PSGs) in the Atacama plants, 64% of which are located in Pfam domains, supporting their functional relevance. For 59/184 PSGs with an Arabidopsis ortholog, we uncovered functional evidence linking them to plant resilience. As some Atacama plants are closely related to staple crops, these candidate PSGs are a genetic goldmine to engineer crop resilience to face climate change.
英文关键词	desert evolution adaptation stress microbiome
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000723038500018
WOS关键词	PHYLOGENETIC ANALYSIS ; ARABIDOPSIS ; GROWTH ; EXPRESSION ; BACTERIA ; GENERATION ; DIVERSITY ; EVOLUTION ; ARIDITY ; GENE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373861
作者单位	[Eshel, Gil; Zegar, Charles M.; Coruzzi, Gloria M.] NYU, Ctr Genom & Syst Biol, Dept Biol, New York, NY 10003 USA; [Araus, Viviana; Undurraga, Soledad; Soto, Daniela C.; Moraga, Carol; Montecinos, Alejandro; Moyano, Tomas; Maldonado, Jonathan; Diaz, Francisca P.; Contreras-Lopez, Orlando; Pal-Gabor, Henrietta; Kraiser, Tatiana; Carrasco-Puga, Gabriela; Nilo-Poyanco, Ricardo; Orellana, Ariel; Montecino, Martin; Maass, Alejandro; Allende, Miguel L.; Gonzalez, Mauricio; Gutierrez, Rodrigo A.] Fondo Desarrollo Areas Prioritarias FONDAP, Ctr Genome Regulat, Santiago 8370415, Chile; [Araus, Viviana; Undurraga, Soledad; Soto, Daniela C.; Moraga, Carol; Montecinos, Alejandro; Moyano, Tomas; Maldonado, Jonathan; Diaz, Francisca P.; Contreras-Lopez, Orlando; Pal-Gabor, Henrietta; Kraiser, Tatiana; Carrasco-Puga, Gabriela; Nilo-Poyanco, Ricardo; Gutierrez, Rodrigo A.] Pontificia Univ Catolica Chile, Agencia Nacl Invest & Desarrollo ANID, Millennium Sci Initiat Program,Fac Ciencias Biol, Millennium Inst Integrat Biol...
推荐引用方式 GB/T 7714	Eshel, Gil,Araus, Viviana,Undurraga, Soledad,et al. Plant ecological genomics at the limits of life in the Atacama Desert[J],2021,118(46).
APA	Eshel, Gil.,Araus, Viviana.,Undurraga, Soledad.,Soto, Daniela C..,Moraga, Carol.,...&Gutierrez, Rodrigo A..(2021).Plant ecological genomics at the limits of life in the Atacama Desert.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,118(46).
MLA	Eshel, Gil,et al."Plant ecological genomics at the limits of life in the Atacama Desert".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 118.46(2021).