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水稻SPL家族转录因子的生物学功能研究进展

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中国水稻科学 2024年第3期38卷 223-232页

作者：胡丽杨范敏陈薇兰袁华四川开放大学农林卫生学院成都610073 四川农业大学水稻研究所/西南作物基因资源挖掘与利用国家重点实验室成都611130

SPL(SQUAMOSAPROMOTER-BINDINGPROTEIN-LIKE)家族蛋白是植物特有的一类多功能转录因子。水稻中有19个OsSPL基因,所编码蛋白均含有一个高度保守的SBP结构域,该结构域负责与下游靶基因的核心基序GTAC结合,调控靶基因表达。OsSPL的表达会受... 详细信息

SPL(SQUAMOSAPROMOTER-BINDINGPROTEIN-LIKE)家族蛋白是植物特有的一类多功能转录因子。水稻中有19个OsSPL基因,所编码蛋白均含有一个高度保守的SBP结构域,该结构域负责与下游靶基因的核心基序GTAC结合,调控靶基因表达。OsSPL的表达会受到OsmiR156/529/535和多种因子调控。研究表明OsSPL在水稻根系发育、叶舌叶耳发育、株型和穗型形成、籽粒发育和胁迫响应等多个生物学过程中发挥重要作用,是水稻生长发育的调控枢纽。本文综述了水稻OsSPL家族的系统进化与结构特征、表达调控及生物学功能研究进展,并对其研究前景进行了展望。

关键词： OsSPL 转录因子 OsmiR156 表达调控生物学功能

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水稻品种DNA指纹图谱构建及品种纯度的快速鉴定

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杂交水稻 2024年第2期39卷 29-37页

作者：康亮珠李飞陈薇兰王玉平李仕贵袁华四川农业大学西南作物基因资源发掘与利用国家重点实验室/水稻研究所四川成都611130

为了构建四川省2021年水稻区试品种指纹图谱,建立一套快速鉴定杂交稻种子纯度的方法,本研究结合SSR分子标记检测技术、品种指纹图谱数据并利用单粒法DNA提取和毛细管电泳系统,完成了2021年四川省水稻区试品种的指纹图谱构建和遗传多样... 详细信息

为了构建四川省2021年水稻区试品种指纹图谱,建立一套快速鉴定杂交稻种子纯度的方法,本研究结合SSR分子标记检测技术、品种指纹图谱数据并利用单粒法DNA提取和毛细管电泳系统,完成了2021年四川省水稻区试品种的指纹图谱构建和遗传多样性分析,并快速获得杂交稻惠和优566的种子纯度鉴定结果。结果表明水稻品种的指纹图谱、单粒种子提取DNA和毛细管电泳能够帮助育种者加快鉴定种子纯度。

关键词：水稻品种指纹图谱单粒种子 DNA提取毛细管电泳种子纯度快速鉴定

Characterization and Fine Mapping of GLABROUS RICE 2 in Rice

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Journal of Genetics and Genomics 2013年第11期40卷 579-582页

作者： Yuping Wang weilan chen Peng Qin Yanyan Huang Bingtian Ma Xinhao Ouyang Xuewei chen Shigui Li Rice Research Institute of Sichuan Agricultural University State Key Laboratory of Hybrid Rice Sichuan Agricultural University

Glabrous rice exhibits glabrous leaves and hulls because neither of these structures have trichomes on their surfaces. Glabrous rice varieties have become an important germplasm resource in the rice industry because they have considerable packaging efficiency and can reduce skin itching and dust during harvesting, drying, and packing （Shim et al., 2012; Zhang et al., 2012）.

关键词： Characterization and Fine Mapping of GLABROUS RICE 2 in Rice SSRs

A Fragment Substitution in Promoter of MS92/PTC1 Causes Male Sterility in Rice

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Rice science 2020年第5期27卷 396-404,I0018-I0023页

作者： Qin Peng Deng Luchang chen weilan Huang Juan Fan Shijun Tu Bin Tan Jun Yuan Hua Wang Yuping Ma Bingtian Li Shigui Rice Research Institute/State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Sichuan Agricultural UniversityChengdu 611130China Crop Research Institute Sichuan Academy of Agricultural SciencesChengdu 610066China Characteristic Crop Research Institute Chongqing Academy of Agricultural SciencesChongqing 402160China

Persistent tapetal cell1(PTC1) plays a curial role in pollen development, and is thought to function as a transcriptional activator in rice. However, the molecular mechanism of PTC1 in regulating pollen development and its cis-elements are not well understood. We identified a novel weak male sterility mutant(ms92) which exhibited expanded tapetum and shrink pollen grains. Map-based cloning and allelic analysis suggested that the male sterility of ms92 was caused by a DNA fragment substitution in the promoter of PTC1. The decreased expression of MS92/PTC1 in ms92 and cis-element analysis indicated that the substituted sequence contained several potential binding cis-element of negative feedback. MS92/PTC1 was specifically expressed in tapetum and microspores at the young microspore stage, and its protein was localized in nucleus. We further found that MS92/PTC1 functions as a transcription activator by recognizing H3K4me3. Transcriptomic analysis revealed that a number of genes involved in tapetum degeneration and pollen wall formation were down-regulated in ms92, which are the potential targets of MS92/PTC1. The substitution fragment in MS92/PTC1 promoter was essential for pollen development, and we provided a novel mutant for further identifying the cis-elements in promoter and the molecular network of MS92/PTC1.

关键词： rice MS92/PTC1 plant homeodomain finger cis-element male sterility anther

Improving the efficiency of hybrid combination preparation in rice breeding by a modified flowering stimulant

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International Journal of Agricultural and Biological Engineering 2020年第3期13卷 36-40页

作者： Ling Zheng Shangxing Zhang Fengyin Xue Yifan Yun Pin Liu Hua Yuan weilan chen Peng Qin Yuping Wang Bingtian Ma Shigui Li Yong chen Bin Tu Rice Research Institute of Sichuan Agricultural University Chengdu 611130China State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Chengdu 611130China Hybrid Rice Research Center of Neijiang Academy of Agricultural Neijiang 641000SichuanChina Zunyi Agricultural Science Research Institute Zunyi 563000GuizhouChina

The utilization of hybrid vigor is an important breakthrough in the history of rice *** select the best hybrid combinations,breeders manually perform extensive testing of hybridizations between restorer and sterile lines,which is a laborious and time-consuming ***,we report that a modified flowering stimulant containing methyl jasmonate(MeJA),6-benzylamine adenine and kinetin effectively promotes the flowering and seed set of male-sterile rice *** concentrations of the ingredients were tested to identify an optimal *** quality evaluation indicated that hybrid seeds from plants sprayed with the flowering stimulant had a higher germination rate than seeds from plants prepared by *** summary,the modified flowering stimulant described in this study may help reduce the labor requirement associated with hybrid rice breeding and improve yield and efficiency.

关键词： hybrid rice cross flowering stimulant methyl jasmonate kinetin

qGW11a/OsCAT8, encoding an amino acid permease,negatively regulates grain size and weight in rice

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A natural allele of TAW1 contributes to high grain number and grain yield in rice

The Crop Journal 2024年第4期 1150页

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The Crop Journal 2021年第5期9卷 1060-1069页

作者： Hua Yuan Zhengyan Xu Xueqin Tan Peng Gao Mengya Jin Wencheng Song Shiguang Wang Yunhai Kang Peixiong Liu Bin Tu Yuping Wang Peng Qin Shigui Li Bingtian Ma weilan chen State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Rice Research InstituteSichuan Agricultural UniversityChengdu 611130SichuanChina Guangdong Key Laboratory of New Technology in Rice Breeding Rice Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou 510640GuangdongChina

Grain number per panicle (GNP) is a complex trait controlled by quantitative trait loci (QTL),directly determining grain yield in *** GNP-associated QTL is desirable for increasing rice yield.A rice chromosome segment substitution line (CSSL),F771,which showed increased panicle length and GNP,was identified in a set of CSSLs derived from a cross between two indica cultivars,R498 (recipient) and WY11327 (donor).Genetic analysis showed that the panicle traits in F771 were semidominant and controlled by multiple *** QTL were consistently identified by QTL-seq *** them,the major QTL q PLN10 for panicle length and GNP was localized to a 121-kb interval between markers N802 and N909 on chromosome *** on quantitative real-time PCR and sequence analysis,TAWAWA1(TAW1),a known regulator of rice inflorescence architecture,was identified as the candidate gene for q PLN10.A near-isogenic line,NIL-TAW1,was developed to evaluate its *** comparison with the recurrent parent R498,NIL-TAW1 showed increased panicle length (14.0%),number of secondary branches (20.9%) and GNP (22.0%),and the final grain yield per plant of NIL-TAW1 was increased by18.6%.Transgenic experiments showed that an appropriate expression level of TAW1 was necessary for panicle *** analysis suggested that the favorable F771-type (Hap 13) of TAW1was introduced from aus accessions and had great potential value in high-yield breeding both in indica and japonica *** results provide a promising genetic resource for rice grain yield improvement.

关键词： Rice Panicle length Grain number per panicle Quantitative trait locus TAW1

Characterization and Fine Mapping of a Novel Vegetative Senescence Lethal Mutant Locus in Rice

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Journal of Genetics and Genomics 2015年第9期42卷 511-514页

作者： Junjie Yin Xiaobo Zhu Can Yuan Jing Wang Weitao Li Yuping Wang Min He Qinshu cheng Bangquan Ye weilan chen Qianyan Linghu Jichun Wang Bingtian Ma Peng Qin Shigui Li Xuewei chen Rice Research Institute Key Laboratory of Major Crop Diseases and State Key Laboratory of Hybrid Rice Sichuan Agricultural University

Mutants showing spontaneous cell death in the absence of pathogen attack are called lesion mimic mutants （lmm）（Lorrain et al., 2003）. These mutants usually exhibit typical hypersensitive responses （HRs） within or around the lesion spots, which are frequently observed in plants challenged with avirulent pathogens （Lorrain et al., 2003）. A number of these mutants have been characterized in rice （Zeng et al., 2004）, Arabidopsis （Guo et al., 2013）, maize （Wang et al., 2013） and barley （Persson et al., 2008）. Most lmm show enhanced resistance to various pathogens （Huang et al., 2011）, because HR is usually accompanied with enhanced defense responses, such as reactive oxygen species （ROS） activation （Qiao et al., 2010） and increased expression of pathogenesis-related genes （Lorrain et al., 2003）. Additionally, most lmm exhibit defects in growth and development due to the disordered physiolog- ical and molecular processes caused by the lesion spots. Thus, lmm are powerful tools for the study of the molecular mech- anisms of cell death, plant development and disease resistance （Lorrain et al., 2003; Babu et al., 2011）.

关键词： Characterization and Fine Mapping of a Novel Vegetative Senescence Lethal Mutant Locus in Rice gene

Wide grain 4,encoding an alpha-tubulin,regulates grain size by affecting cell expansion in rice

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The Crop Journal 2023年第6期11卷 1931-1936页

作者： Yi Liu Lianan Guo Guoli Qu Yang Xiang Xu Zhao Hua Yuan Ting Li Liangzhu Kang Shiwen Tang Bin Tu Bingtian Ma Yuping Wang Shigui Li weilan chen Peng Qin State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Rice Research InstituteSichuan Agricultural UniversityChengdu 611130SichuanChina

Rice is one of the three most important food crops in the *** rice yield is an effective way to ensure food *** size is a key factor affecting rice yield;however,the genetic and molecular mechanisms regulating grain size have not been fully *** this study,we identified a rice mutant,wide grain 4-D(wg4-D),that exhibited a significant increase in grain width and a decrease in grain *** analysis demonstrated that WG4 affects cell expansion thereby regulating grain ***-based gene mapping and complementary transgenic experiments revealed that WG4 encodes an alpha-tubulin,OsTubA1.A SNP mutation in WG4 affected the arrangement of cortical microtubules and caused a wide-grain ***4 is located in nuclei and cytoplasm and expressed in various *** results provide insights into the function of tubulin in rice and identifies novel targets the regulation of grain size in crop breeding.

关键词： Cell size Microtubules Oryza sativa WG4