Positive selection and heat-response transcriptomes reveal adaptive features of the Brassicaceae desert model, Anastatica hierochuntica

© 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 236(2022), 3 vom: 10. Nov., Seite 1006-1026
1. Verfasser: Eshel, Gil (VerfasserIn)
Weitere Verfasser: Duppen, Nick, Wang, Guannan, Oh, Dong-Ha, Kazachkova, Yana, Herzyk, Pawel, Amtmann, Anna, Gordon, Michal, Chalifa-Caspi, Vered, Oscar, Michelle Arland, Bar-David, Shirli, Marshall-Colon, Amy, Dassanayake, Maheshi, Barak, Simon
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, U.S. Gov't, Non-P.H.S. Research Support, Non-U.S. Gov't Anastatica hierochuntica Brassicaceae adaptation desert species extremophyte heat stress positive selection transcriptome
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100 1 |a Eshel, Gil  |e verfasserin  |4 aut 
245 1 0 |a Positive selection and heat-response transcriptomes reveal adaptive features of the Brassicaceae desert model, Anastatica hierochuntica 
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520 |a Plant adaptation to a desert environment and its endemic heat stress is poorly understood at the molecular level. The naturally heat-tolerant Brassicaceae species Anastatica hierochuntica is an ideal extremophyte model to identify genetic adaptations that have evolved to allow plants to tolerate heat stress and thrive in deserts. We generated an A. hierochuntica reference transcriptome and identified extremophyte adaptations by comparing Arabidopsis thaliana and A. hierochuntica transcriptome responses to heat, and detecting positively selected genes in A. hierochuntica. The two species exhibit similar transcriptome adjustment in response to heat and the A. hierochuntica transcriptome does not exist in a constitutive heat 'stress-ready' state. Furthermore, the A. hierochuntica global transcriptome as well as heat-responsive orthologs, display a lower basal and higher heat-induced expression than in A. thaliana. Genes positively selected in multiple extremophytes are associated with stomatal opening, nutrient acquisition, and UV-B induced DNA repair while those unique to A. hierochuntica are consistent with its photoperiod-insensitive, early-flowering phenotype. We suggest that evolution of a flexible transcriptome confers the ability to quickly react to extreme diurnal temperature fluctuations characteristic of a desert environment while positive selection of genes involved in stress tolerance and early flowering could facilitate an opportunistic desert lifestyle 
650 4 |a Journal Article 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Anastatica hierochuntica 
650 4 |a Brassicaceae 
650 4 |a adaptation 
650 4 |a desert species 
650 4 |a extremophyte 
650 4 |a heat stress 
650 4 |a positive selection 
650 4 |a transcriptome 
700 1 |a Duppen, Nick  |e verfasserin  |4 aut 
700 1 |a Wang, Guannan  |e verfasserin  |4 aut 
700 1 |a Oh, Dong-Ha  |e verfasserin  |4 aut 
700 1 |a Kazachkova, Yana  |e verfasserin  |4 aut 
700 1 |a Herzyk, Pawel  |e verfasserin  |4 aut 
700 1 |a Amtmann, Anna  |e verfasserin  |4 aut 
700 1 |a Gordon, Michal  |e verfasserin  |4 aut 
700 1 |a Chalifa-Caspi, Vered  |e verfasserin  |4 aut 
700 1 |a Oscar, Michelle Arland  |e verfasserin  |4 aut 
700 1 |a Bar-David, Shirli  |e verfasserin  |4 aut 
700 1 |a Marshall-Colon, Amy  |e verfasserin  |4 aut 
700 1 |a Dassanayake, Maheshi  |e verfasserin  |4 aut 
700 1 |a Barak, Simon  |e verfasserin  |4 aut 
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773 1 8 |g volume:236  |g year:2022  |g number:3  |g day:10  |g month:11  |g pages:1006-1026 
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