Transcriptome analysis of four somatic embryogenesis processes at different stages of rubber tree genotypes Yunyan 73477 (YT) and Hotken 628 (RT) with different potential for somatic embryogenesis
The somatic embryo plant of rubber tree is a new type of planting material. however, the ability to obtain somatic embryos in rubber tree is limited to some genotypes, and the dominant varieties lack high frequency somatic embryogenesis system. this has become the bottleneck of the large-scale breeding of new planting materials of the leading varieties, although somatic embryogenesis is of great significance in rubber trees. However, little is known about the molecular mechanism of somatic embryogenesis and the effects of plant hormones on genotypes with different somatic embryogenesis potential. Through the detection of endogenous hormone content and transcriptome sequencing analysis of two genotypes with different somatic embryogenesis potential, it is helpful to deeply understand the mechanism of somatic embryogenesis in rubber tree. to explore the difference of endogenous hormone content and accumulation trend of two genotypes with different somatic embryogenesis potential, and the difference of plant hormone biosynthesis and signal transduction gene expression. The purpose of this study is to provide a basis for the establishment of an efficient and stable technical system for the regulation of somatic embryogenesis and development of rubber trees.