Extreme environmental adaptation mechanisms of Antarctic bryophytes are mainly the activation of antioxidants, secondary metabolites and photosynthetic pathways ...

• Main Authors: Zhang, Liping, Zhang, Zhi, Cao, Junhan, Wang, Kai, Qin, Ling, Sun, Yongjun, Ju, Wenming, Qu, Changfeng, Miao, Jinlai
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: figshare 2023
• Subjects: Genetics; FOS Biological sciences; Plant Biology; Antarc*; Antarctic; Antarctica
• Online Access: https://dx.doi.org/10.6084/m9.figshare.c.6799325; https://springernature.figshare.com/collections/Extreme_environmental_adaptation_mechanisms_of_Antarctic_bryophytes_are_mainly_the_activation_of_antioxidants_secondary_metabolites_and_photosynthetic_pathways/6799325

Abstract The environment in Antarctica is characterized by low temperature, intense UVB and few vegetation types. The Pohlia nutans M211 are bryophytes, which are the primary plants in Antarctica and can thrive well in the Antarctic harsh environment. The transcriptional profiling of Pohlia nutans M211 under low temperature and high UVB conditions was analyzed to explore their polar adaptation mechanism in the extreme Antarctic environment by third-generation sequencing and second-generation sequencing. In comparison to earlier second-generation sequencing techniques, a total of 43,101 non-redundant transcripts and 10,532 lncRNA transcripts were obtained, which were longer and more accurate. The analysis results of GO, KEGG, AS (alternative splicing), and WGCNA (weighted gene co-expression network analysis) of DEGs (differentially expressed genes), combined with the biochemical kits revealed that antioxidant, secondary metabolites pathways and photosynthesis were the key adaptive pathways for Pohlia nutans ...