Genomic convergence underlying high-altitude adaptation in alpine plants
文献类型：期刊论文
| 作者 | Zhang,Xu; Kuang,Tianhui; Dong,Wenlin; Qian,Zhihao; Zhang,Huajie; Landis,Jacob B. B.; Feng,Tao; Li,Lijuan ; Sun,Yanxia; Huang,Jinling
|
| 刊名 | JOURNAL OF INTEGRATIVE PLANT BIOLOGY
 |
| 出版日期 | 2023 |
| 关键词 | adaptation alpine plants evolutionary rates genomic convergence greenhouse morphology high altitude PHYLOGENETIC ANALYSIS ARABIDOPSIS EVOLUTION PROTEIN GENE ALIGNMENT PROGRAM FAMILY TOOL BIOSYNTHESIS |
| ISSN号 | 1744-7909 |
| DOI | 10.1111/jipb.13485 |
| 英文摘要 | Evolutionary convergence is one of the most striking examples of adaptation driven by natural selection. However, genomic evidence for convergent adaptation to extreme environments remains scarce. Here, we assembled reference genomes of two alpine plants, Saussurea obvallata (Asteraceae) and Rheum alexandrae (Polygonaceae), with 37,938 and 61,463 annotated protein-coding genes. By integrating an additional five alpine genomes, we elucidated genomic convergence underlying high-altitude adaptation in alpine plants. Our results detected convergent contractions of disease-resistance genes in alpine genomes, which might be an energy-saving strategy for surviving in hostile environments with only a few pathogens present. We identified signatures of positive selection on a set of genes involved in reproduction and respiration (e.g., MMD1, NBS1, and HPR), and revealed signatures of molecular convergence on genes involved in self-incompatibility, cell wall modification, DNA repair and stress resistance, which may underlie adaptation to extreme cold, high ultraviolet radiation and hypoxia environments. Incorporating transcriptomic data, we further demonstrated that genes associated with cuticular wax and flavonoid biosynthetic pathways exhibit higher expression levels in leafy bracts, shedding light on the genetic mechanisms of the adaptive greenhouse morphology. Our integrative data provide novel insights into convergent evolution at a high-taxonomic level, aiding in a deep understanding of genetic adaptation to complex environments. |
| 学科主题 | Biochemistry & Molecular Biology ; Plant Sciences |
| WOS记录号 | WOS:000972980200001 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/75490]  |
| 专题 | 中国科学院昆明植物研究所 |
| 推荐引用方式 GB/T 7714 | Zhang,Xu,Kuang,Tianhui,Dong,Wenlin,et al. Genomic convergence underlying high-altitude adaptation in alpine plants[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2023. |
| APA | Zhang,Xu.,Kuang,Tianhui.,Dong,Wenlin.,Qian,Zhihao.,Zhang,Huajie.,...&Sun,Hang.(2023).Genomic convergence underlying high-altitude adaptation in alpine plants.JOURNAL OF INTEGRATIVE PLANT BIOLOGY. |
| MLA | Zhang,Xu,et al."Genomic convergence underlying high-altitude adaptation in alpine plants".JOURNAL OF INTEGRATIVE PLANT BIOLOGY (2023). |
入库方式： OAI收割
来源：昆明植物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。