Defective Leptotene Chromosome 1 (DLC1) encodes a type-B response regulator and is required for rice meiosis

被引：12

作者：

Tao, Yang ^{[1
]}

Chen, Dan ^{[1
]}

Zou, Ting ^{[1
,2
]}

Zeng, Jing ^{[1
]}

Gao, Fengyan ^{[1
]}

He, Zhongshan ^{[1
]}

Zhou, Dan ^{[1
]}

He, Zhiyuan ^{[1
]}

Yuan, Guoqiang ^{[1
]}

Liu, Miaomiao ^{[1
]}

Zhao, Hongfeng ^{[1
]}

Deng, Qiming ^{[1
]}

Wang, Shiquan ^{[1
]}

Zheng, Aiping ^{[1
,3
]}

Zhu, Jun ^{[1
]}

Liang, Yueyang ^{[1
]}

Wang, Lingxia ^{[1
]}

Li, Ping ^{[1
,3
]}

Li, Shuangcheng ^{[1
,3
]}

机构：

[1] Sichuan Agr Univ, Rice Res Inst, State Key Lab Hybrid Rice, Chengdu 611130, Sichuan, Peoples R China

[2] Southwest Univ Sci & Technol, Rice Res Inst, Mianyang 621010, Sichuan, Peoples R China

[3] Sichuan Agr Univ, State Key Lab Crop Gene Exploitat & Utilizat Sout, Chengdu 611130, Sichuan, Peoples R China

来源：

PLANT JOURNAL | 2019年 / 99卷 / 03期

基金：

中国国家自然科学基金;

关键词：

rice; meiosis; leptotene; Defective Leptotene Chromosome 1 (DLC1); two-component signalling system (TCS); type-B response regulator; HISTIDINE PHOSPHOTRANSFER PROTEINS; HOMOLOGOUS CHROMOSOME SYNAPSIS; CYTOKININ SIGNAL-TRANSDUCTION; STRAND BREAK FORMATION; CROSSOVER FORMATION; POLLEN DEVELOPMENT; ANTHER DEVELOPMENT; KINASE CKI1; ARABIDOPSIS; GENE;

D O I：

10.1111/tpj.14344

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Meiosis is critical for sexual reproduction and the generation of new allelic variations in most eukaryotes. In this study, we report the isolation of a meiotic gene, DLC1, using a map-based cloning strategy. The dlc1 mutant is sterile in both male and female gametophytes due to an earlier defect in the leptotene chromosome and subsequent abnormalities at later stages. DLC1 is strongly expressed in the pollen mother cells (PMCs) and tapetum and encodes a nucleus-located rice type-B response regulator (RR) with transcriptional activity. Further investigations showed that DLC1 interacts with all five putative rice histidine phosphotransfer proteins (HPs) in yeast and planta cells, suggesting a possible participation of the two-component signalling systems (TCS) in rice meiosis. Our results demonstrated that DLC1 is required for rice meiosis and fertility, providing useful information for the role of TCS in rice meiosis.

引用

页码：556 / 570

页数：15

共 10 条

[1] The OsRR24/LEPTO1 Type-B Response Regulator is Essential for the Organization of Leptotene Chromosomes in Rice Meiosis
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[2] Functional Analysis of the Rice Type-B Response Regulator RR22
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[3] The rice gene DEFECTIVE TAPETUM AND MEIOCYTES 1 (DTM1) is required for early tapetum development and meiosis
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[10] The auxin responsive AP2/ERF transcription factor CROWN ROOTLESS5 is involved in crown root initiation in rice through the induction of OsRR1, a type-A response regulator of cytokinin signaling
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