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Comparative genomics analysis of drought response between obligate CAM and C3 photosynthesis plants

Hu, Rongbin ; Zhang, Jin ; Jawdy, Sara ; Sreedasyam, Avinash ; Lipzen, Anna ; Wang, Mei ; Ng, Vivian ; Daum, Christopher ; Keymanesh, Keykhosrow ; Liu, Degao ; Lu, Haiwei ; Ranjan, Priya ; Chen, Jin-Gui ; Muchero, Wellington ; Tschaplinski, Timothy J. ; Tuskan, Gerald A. ; Schmutz, Jeremy ; Yang, Xiaohan

Journal of plant physiology, 2022-08, Vol.277 [Periódico revisado por pares]

United States

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Título:
Comparative genomics analysis of drought response between obligate CAM and C3 photosynthesis plants
Autor: Hu, Rongbin ; Zhang, Jin ; Jawdy, Sara ; Sreedasyam, Avinash ; Lipzen, Anna ; Wang, Mei ; Ng, Vivian ; Daum, Christopher ; Keymanesh, Keykhosrow ; Liu, Degao ; Lu, Haiwei ; Ranjan, Priya ; Chen, Jin-Gui ; Muchero, Wellington ; Tschaplinski, Timothy J. ; Tuskan, Gerald A. ; Schmutz, Jeremy ; Yang, Xiaohan
Assuntos: abscisic acid ; BASIC BIOLOGICAL SCIENCES ; crassulacean acid metabolism ; drought stress ; Kalanchoë fedtschenkoi ; RNA-seq ; secondary metabolism
É parte de: Journal of plant physiology, 2022-08, Vol.277
Notas: USDOE Office of Science (SC), Biological and Environmental Research (BER)
AC02-05CH11231; SC0008834; AC05–00OR22725; AC05-00OR22725
Descrição: Crassulacean acid metabolism (CAM) plants exhibit elevated drought and heat tolerance compared to C3 and C4 plants through an inverted pattern of day/night stomatal closure and opening for CO2 assimilation. However, the molecular responses to water-deficit conditions remain unclear in obligate CAM species. In this study, we presented genome-wide transcription sequencing analysis using leaf samples of an obligate CAM species Kalanchoë fedtschenkoi under moderate and severe drought treatments at two-time points of dawn (2-h before the start of light period) and dusk (2-h before the dark period). Differentially expressed genes were identified in response to environmental drought stress and a whole genome wide co-expression network was created as well. We found that the expression of CAM-related genes was not regulated by drought stimuli in K. fedtschenkoi. Our comparative analysis revealed that CAM species (K. fedtschenkoi) and C3 species (Arabidopsis thaliana, Populus deltoides ‘WV94’) share some common transcriptional changes in genes involved in multiple biological processes in response to drought stress, including ABA signaling and biosynthesis of secondary metabolites.
Editor: United States
Idioma: Inglês

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Comparative genomics analysis of drought response between obligate CAM and C3 photosynthesis plants

United States

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