文献类型：期刊文献

英文题名：Heterologous expression of SpsLAZY1a in Populus enhanced the sensitiveness of plant architecture

作者：Yang, Haifeng[1] Zhang, Lei[2] Li, Anyu[1] Hao, Pu[1] Zhang, Guosheng[1] Wei, Dongshan[1] Fan, Lijiao[1] Zhang, Xinqian[1] Hu, Jianjun[2]

第一作者：Yang, Haifeng

通信作者：Yang, HF[1]

机构：[1]Inner Mongolia Agr Univ, Coll Forestry, Hohhot 010019, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China

年份：2023

卷号：197

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20231213777581);Scopus(收录号：2-s2.0-85150390845);WOS:【SCI-EXPANDED(收录号:WOS:000971353100001)】；

基金：This work was supported by the National Natural Science Foundation of China (31660216) , National Key Program on Transgenic Research (2018ZX08020002-005-005) and Key Technology Research Project of Inner Mongolia Autonomous Region (2021GG0075) .

语种：英文

外文关键词：SpsLAZY1a; Plant architecture; Poplar; Gravity response

摘要：Plant tiller angle is a key agronomic trait that contributes to ideal plant architecture and grain production. However, the molecular mechanism regulating branch angle and plant architecture has not been fully explored in Salix psammophila. Here, we found that the natural germplasm of S. psammophila has a different plant architecture and determined that SpsLAZY1a participated in the control of agronomical traits. SpsLAZY1a was mainly expressed in the stem. SpsLAZY1a transformed with heterologous overexpression in poplar caused distortion at the base of the stem, increased the number of branches and influenced the sensitivity to gravity of the plant. Furthermore, SpsLAZY1a overexpression plants accumulated less auxin and cytokinin than the control. Transcriptome sequencing showed that the overexpression of SpsLAZY1a caused the differential expression of related genes in the plant hormone signal transduction, starch and sucrose metabolism pathways. The expression level of SpsLAZY1a can be rapidly induced by auxin. Taken together, we discovered the key genes related to S. psammophila plant architecture, which provided a basis for further research on the development of tree architecture.