Transcriptomic Analysis Reveals Hormonal Control of Shoot Branching in Salix matsudana

The results presented here contribute to a more comprehensive understanding of the hormonal effects on shoot branching in S. matsudana

Juanjuan Liu; Bingbing Ni; Yanfei Zeng; Caiyun He; Jianguo Zhang


Scholarcy highlights

  • Shoot branching is a highly plastic developmental process that greatly affects plant architecture.During this process, axillary buds in the axil of the leaves are formed and subsequently outgrow and develop into branches
  • Our results showed the amounts of indole-3-acetic acid inofthe stem apex was apex was enhanced in S. matsudana compared to S. matsudana var. pseudo-matsudana, and the difference in this effect was observed in the basal branches
  • Our study showed that auxin, CKs, SLs, and GAs might play central roles in shoot branching control in willow
  • Most of Differentially Expressed Genes were differentially expressed at the time of shoot branching happened in S. matsudana, which have more number of branching
  • The genes linked to auxin, CKs, and Arabidopsis response regulators), SLs, and GAs were probably responsible for shoot branching
  • The genes with differential expression patterns were used to construct a regulatory network model to reveal the interaction between auxin, CKs, SLs, and GAs in the control of shoot branching in willow
  • These results will be helpful to the focus of our future research on the four hormones

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