The BIG gene controls size of shoot apical meristems in Arabidopsis thaliana
The BIG gene controls size of shoot apical meristems in Arabidopsis thaliana
复制标题
BIG 基因控制拟南芥茎尖分生组织的大小
DOI:
10.1007/s00299-020-02510-6
复制
发表时间:
2020-02
影响因子:
6.2
通讯作者:
Li Ping Tang
中科院分区:
文献类型:
--
作者:
Wen Jie Zhang;Li Ming Zhai;Hai Xia Yu;Jing Peng;Shan Shan Wang;Xian Sheng Zhang;Ying Hua Su;Li Ping Tang
BIG regulates the shoot stem cell population. The shoot apical meristem (SAM) contains a population of self-renewing cells, and provides daughter cells for initiation and development of aerial parts of plants. However, the underlying mechanisms of SAM size regulation remain largely unclear. Here, we identified a mutant that displayed a large SAM, designated big-shoot meristem (big-m), in Arabidopsis thaliana. The phenotype of big-m is caused by a new T-DNA insertion allele of BIG, causing a loss of function. The big-m mutant had more stem cells in the SAM than in the wild type. Expression of WUSCHEL (WUS) and SHOOTMERISTEMLESS (STM) was promoted in big-m compared with the wild type, showing that BIG functions upstream of WUS and STM. Therefore, BIG is an important regulator of the stem cell population in the SAM. Furthermore, genetic analysis indicated that BIG acts synergistically with PIN-FORMED1 (PIN1) in controlling SAM size. Our results suggest that BIG plays an important role in controlling Arabidopsis thaliana SAM growth via PIN1-mediated auxin homeostasis.
登录
查看更多内容
影响因子:
56.9
作者:
Fletcher, LC;Brand, U;Meyerowitz, EM
通讯作者:
Meyerowitz, EM
DOI:
--
发表时间:
--
期刊:
--
影响因子:
--
作者:
R. K. Yadav;Mariano Perales;J. Gruel
通讯作者:
R. K. Yadav;Mariano Perales;J. Gruel
影响因子:
9.2
作者:
Heisler, MG;Ohno, C;Meyerowitz, EM
通讯作者:
Meyerowitz, EM
影响因子:
9.5
作者:
L. Williams;J. Fletcher
通讯作者:
L. Williams;J. Fletcher
影响因子:
9.4
作者:
Ruo-Xi Zhang;Shengchao Ge;Jingjing He;Shuangchen Li;Yanhong Hao;Hao Du;Zhongming Liu;Rui Cheng;Yu-Qi Feng;Lizhong Xiong;Li Chuanyou;Alistair M. Hetherington;Yun-Kuan Liang
通讯作者:
Yun-Kuan Liang