The haplotype-resolved telomere-to-telomere genome and OMICS analyses reveal genetic responses to tapping in rubber tree
文献类型： 外文期刊
作者： Li, Chaochao 1 ; Yuan, Yuan 1 ; Nie, Zhiyi 1 ; Wu, Tingkai 1 ; Wang, Zhiyuan 1 ; Qiao, Jiangxia 2 ; Deng, Zhi 1 ; Wang, Xiaobo 1 ; Xu, Dong 1 ; Wang, Xu 2 ; Cao, Shuo 2 ; Li, Bingqin 1 ; An, Zewei 1 ; Wu, Wenguan 1 ; Jin, Zhongxin 1 ; Huang, Huasun 1 ; Hu, Wei 3 ; Zhou, Yongfeng 2 ; Cheng, Han 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Rubber Res Inst, State Key Lab Trop Crop Breeding, Key Lab Biol & Genet Resources Rubber Tree,Minist, Haikou, Peoples R China
2.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen Branch, State Key Lab Trop Crop Breeding,Minist Agr & Rura, Shenzhen, Peoples R China
3.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya, Peoples R China
4.Rubber Res Inst, State Key Lab Incubat Base Cultivat & Physiol Trop, Haikou, Peoples R China
5.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, State Key Lab Trop Crop Breeding, Key Lab Biol & Genet Resources Trop Crops,Sanya Re, Haikou, Peoples R China
6.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, State Key Lab Trop Crop Breeding, Haikou, Peoples R China
期刊名称：NATURE COMMUNICATIONS （ 影响因子：15.7； 五年影响因子：17.2 ）
ISSN：
年卷期： 2025 年 16 卷 1 期
页码：
收录情况： SCI
摘要： Rubber tree (Hevea brasiliensis) is the primary source of natural rubber and economically important. We present the haplotype-resolved, telomere-to-telomere, gap-free genome assembly of the cultivar CATAS 7-33-97, with both haplotypes containing complete telomeric and centromeric regions. Structural variations, including a 32.71 Mb inversion on chromosome 8, are identified. The fully assembled 36 chromosomes enable comprehensive identification of rubber biosynthesis genes and their allele-specific expression. By integrating transcriptomic and metabolomic data, we reconstruct the rubber biosynthesis pathway and confirm the mevalonate (MVA) pathway as the major carbon source for rapid latex regeneration during tapping. Jasmonic acid (JA) plays a key role in promoting rubber yield by enhancing biosynthetic activity in response to mechanical wounding. We propose a model where JA-induced myelocytomatosis proteins 2 activate mevalonate kinase 1 expression, boosting MVA synthesis and rubber production. These findings provide insights into rubber tree genomics and its molecular response to tapping.
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