Study of Camellia sinensis diploid and triploid leaf development mechanism based on transcriptome and leaf characteristics
文献类型： 外文期刊
作者： Yao, Xinzhuan 1 ; Qi, Yong 2 ; Chen, Hufang 1 ; Zhang, Baohui 1 ; Chen, Zhengwu 2 ; Lu, Litang 1 ;
作者机构： 1.Guizhou Univ, Coll Tea Sci, Guiyang, Guizhou, Peoples R China
2.Guizhou Acad Agr Sci, Guiyang, Peoples R China
3.Inst Agro Bioengn, Key Lab Plant Resources Conservat & Germplasm Inn, Minist Educ, Guiyang, Guizhou, Peoples R China
期刊名称：PLOS ONE （ 影响因子：3.7； 五年影响因子：3.8 ）
ISSN： 1932-6203
年卷期： 2023 年 18 卷 2 期
页码：
收录情况： SCI
摘要： Polyploidization results in significant changes in the morphology and physiology of plants, with increased growth rate and genetic gains as the number of chromosomes increases. In this study, the leaf functional traits, photosynthetic characteristics, leaf cell structure and transcriptome of Camellia sinensis were analyzed. The results showed that triploid tea had a significant growth advantage over diploid tea, the leaf area was 59.81% larger, and the photosynthetic capacity was greater. The morphological structure of triploid leaves was significantly different, the xylem of the veins was more developed, the cell gap between the palisade tissue and the sponge tissue was larger and the stomata of the triploid leaves were also larger. Transcriptome sequencing analysis revealed that in triploid tea, the changes in leaf morphology and physiological characteristics were affected by the expression of certain key regulatory genes. We identified a large number of genes that may play important roles in leaf development, especially genes involved in photosynthesis, cell division, hormone synthesis and stomata development. This research will enhance our understanding of the molecular mechanism underlying tea and stomata development and provide a basis for molecular breeding of high-quality and high-yield tea varieties.
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