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genetic, hormonal, and environmental control of tillering in wheat

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The Crop Journal 2021年第5期9卷 986-991页

作者： Qiushuang Shang Yaping Wang Heng Tang Na Sui Xiansheng Zhang Fang Wang State Key Laboratory of Crop Biology College of Life SciencesShandong Agricultural UniversityTai’an 271018ShandongChina College of Plant Protection Shandong Agricultural UniversityTai’an 271018ShandongChina Shandong Provincial Key Laboratory of Plant Stress College of Life ScienceShandong Normal UniversityJinan 250014ShandongChina

Tillering contributes greatly to grain yield in *** the mechanisms of tillering provides a theoretical foundation and genetic resources for the molecular breeding of *** regulation of tillering is a complex molecular process that involves a multitude of *** is known about the molecular mechanisms in the wheat genome,although progress has been made in *** we review the developmental characteristics of tillers and summarize current knowledge of the roles of endogenous and environmental factors in wheat *** propose directions for future studies and advanced technologies to be used for gene identification and functional studies.

关键词： Wheat Tillering genetic control Hormonal regulation Environmental factor

Molecular bases of rice grain size and quality for optimized productivity

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Science Bulletin 2023年第3期68卷 314-350,M0004页

作者： Deyong Ren Chaoqing Ding Qian Qian State Key Laboratory of Rice Biology China National Rice Research InstituteHangzhou 310006China

The accomplishment of further optimization of crop productivity in grain yield and quality is a great *** size is one of the crucial determinants of rice yield and quality;all of these traits are typical quantitative traits controlled by multiple *** advances have revealed several molecular and developmental pathways that govern these traits of agronomical *** review provides a comprehensive summary of these pathways,including those mediated by G-protein,the ubiquitin–proteasome system,mitogen-activated protein kinase,phytohormone,transcriptional regulators,and storage product biosynthesis and *** also generalize the excellent precedents for rice variety improvement of grain size and quality,which utilize newly developed gene editing and conventional gene pyramiding *** addition,we discuss the rational and accurate breeding strategies,with the aim of better applying molecular design to breed high-yield and superior-quality varieties.

关键词： Rice Grain size Grain quality genetic control Molecular networks Variety improvement

Severity of Leaf Rust and Brown Eyespot in Genotypes of Coffea arabica *** with High Plant Density

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American Journal of Plant Sciences 2014年第25期5卷 3702-3709页

作者： Wagner Nunes Rodrigues Marcelo Antonio Tomaz Marcio Antonio Apostolico Tafarel Victor Colodetti Lima Deleon Martins Leonardo Fardim Christo Sebastiao Vinicius Batista Brinate Waldir Cintra de Jesus Jr. Jose Francisco Teixeira do Amaral Centro de Ciencias Agrarias Universidade Federal do Espírito Santo(CCA/UFES)AlegreBrazil Centro de Ciencias da Natureza Universidade Federal de Sao Carlos(UFSCAR)BuriBrazil

This study investigated the severity of leaf rust and brown eyespot in genotypes of Coffea arabica L. cultivated with high plant density in the region of Caparaó-ES. The experiment was conducted in a competition field, cultivated with high plant density (8333 plants per hectare), following a randomized block design, with 16 genotypes and four replications. The plants were evaluated during consecutive harvests to study two complete reproductive cycles (from 2010 to 2012). Data were obtained for the phenologicalstages of flowering, graining, maturation and vegetative rest of each cycle. The severity of leaf rust (Hemileia vastratrix) and brown eyespot (Cercospora coffeicola) was evaluated using descriptive scales. It was observed that the genotypes are able to keep a considerable level of resistance to the leaf rust and brown eyespot when cultivated with increased density. The genotypes presented variability regarding the severity of the leaf rust and brown eyespot, indicating the existence of differential levels of resistance between them. For cultivation with high plant density, the genotypes Katipó, Paraíso MG H419-1, H419-3-3-7-16-4-1-1, Araponga MG1, Catucaí Amarelo 24/137, Catiguá MG2, Sacramento MG1, Pau-Brasil MG1, Catiguá MG3, Oeiras MG 6851 and Tupi present higher level of resistance for leaf rust. In addition, the genotypes Paraíso MG H419-1, Catiguá MG2, Pau-Brasil MG1, Catiguá MG3, Oeiras MG 6851, Tupi, Catuaí IAC 44, Catuaí IAC 81 and Catuaí IAC 144 present higher level of resistance for brown eyespot.

关键词： Arabica Coffee Hemileia vastratrix Cercospora coffeicola genetic control Resistance

Protein markers associated with fertility restoration in japonica rice(Oryza sativaL.)

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Chinese Rice Research Newsletter 2001年第1期9卷 4-5页

作者： HONGDelin HSatoh TKumamaru QULeqing USSadar DeotofAgronomy NanjingAgriUnivNanjing210095China FacultyofAgru KyushuUnivHakozakiFukuoka812-0081Japan

As genetic markers, seed storage proteins have characters of high level of polymorphism, less environmental influence, and simple genetic control. In this study, Kinmaze (CK), Liuqianxin A, Liuqianxin B, Liuqianxin R, 77302-1, Ninghui3-2, C57, Chinsurah Boro Ⅱ, TN1, IR8, IR2A, and F1 and F2 of Liuqianxin A/77302-1 were used to detect protein markers associated with fertility restoration in japonica rice.

关键词： japonica rice fertility restoration genetic control