文献类型：期刊文献

英文题名：Genome-Wide Identification and Expression Analysis of the SQUAMOSA Promoter-Binding Protein-like (SPL) Transcription Factor Family in Catalpa bungei

作者：Fan, Erqin[1,2] Liu, Caixia[1,3] Wang, Zhi[2] Wang, Shanshan[1] Ma, Wenjun[2] Lu, Nan[2] Liu, Yuhang[1] Fu, Pengyue[1,2] Wang, Rui[1,2] Lv, Siyu[1,2] Qu, Guanzheng[1] Wang, Junhui[2]

第一作者：Fan, Erqin

通信作者：Wang, JH[1]

机构：[1]Northeast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin 150040, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Key Lab Tree Breeding & Cultivat,Natl Forestry & G, Beijing 100091, Peoples R China;[3]Northeast Forestry Univ, Coll Life Sci, Harbin 150040, Peoples R China

年份：2024

卷号：25

期号：1

外文期刊名：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES

收录：;Scopus(收录号：2-s2.0-85182097878);WOS:【SCI-EXPANDED(收录号:WOS:001141444300001)】；

基金：No Statement Available

语种：英文

外文关键词：Catalpa bungei; CbuSPL; flowering

摘要：As a plant-specific transcription factor, the SPL gene family plays a critical role in plant growth and development. Although the SPL gene family has been identified in diverse plant species, there have been no genome-wide identification or systematic study reports on the SPL gene family in Catalpa bungei. In this study, we identified 19 putative SPL gene family members in the C. bungei genome. According to the phylogenetic relationship, they can be divided into eight groups, and the genes in the same group have a similar gene structure and conserved motifs. Synteny analysis showed that fragment duplication played an important role in the expansion of the CbuSPL gene family. At the same time, CbuSPL genes have cis-acting elements and functions related to light response, hormone response, growth and development, and stress response. Tissue-specific expression and developmental period-specific expression analysis showed that CbuSPL may be involved in flowering initiation and development, flowering transition, and leaf development. In addition, the ectopic expression of CbuSPL4 in Arabidopsis confirmed that it can promote early flowering and induce the expression of related flowering genes. These systematic research results will lay a foundation for further study on the functional analysis of SPL genes in C. bungei.