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2017中国长三角遗传学大会

作者： Yan-Jie Zhang Yu Zhang Hui-Ya Huang 林文慧 School of Life Sciences and Biotechnology Shanghai Jiao Tong University Institute of Botany Chinese Academy of Sciences

seed number is an important part of seed *** number regulation is a complex process and affected by different *** are interested in the organ(seed or seed precursor)initiation and the maximal possibility of seed *** some dicot plants,like Arabidopsis,seed number depends on seed number per fruit(mainly on ovule number) and fruit *** previous work illustrated that brassinosteroid(BR) positive regulated ovule/seed number through influencing the expression of downstream genes related to ovule early development by BRinduced transcription factor ***-lD(P234 L,gain-of-function mutant of BZR1) has enhanced BZR1 protein activity,placenta size and ovule/seed number per flower/*** genome-wide analysis of bzrl-lD carpel margin meristem indicates that BR signaling regulates different development related genes and phytohormonal responsive genes and contributes to ovule initiation and ovule/seed number *** is an important dicot crop producing protein and edible *** analysis reveals BZRl-\\ke genes are highly conserved in angiosperm and there are 4 orthologues in soybean {GmBZLl-4).The functional characterization of GmBZL2 illustrates that GmBZL2*(P216 L,conserved with P234 L in Arabidopsis)enhances GmBZL2 protein activity,increased Arabidopsis BR signaling and seed number,further demonstrating the conserved function and regulatory mecha nism of *** of GmBZL2 in soybean enhances seed number,indicating the potential application of BR in seed yield of dicot *** monocot plants,like rice,seed(grain) number determines by grain number per panicle(mainly by panicle development and branch number) and panicle *** results illustrates that BR regulates grain number through influencing BR-regulated transcription *** seed number regulation in Arabidopsis and rice has different mechanism,there are at least two common ways of BR regulation of seed number:non-specific increasing repro

关键词： BR seed number BZR1 GmBZL2

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Ectopic expression of VvFUS3,B3-domain transcription factor,in tomato influences seed development via affecting endoreduplication and hormones

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Horticultural Plant Journal 2022年第3期8卷 351-360页

作者： Bilal Ahmad Songlin Zhang Jin Yao Shengyue Chai Vivek Yadav Habib-ur-Rehman Athar Mati Ur Rahman Li Wang Xiping Wang State Key Laboratory of Crop Stress Biology in Arid Areas College of HorticultureNorthwest A&F UniversityYanglingShaanxi 712100China Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China Ministry of AgricultureNorthwest A&F UniversityYanglingShaanxi 712100China Institute of Pure and Applied Biology Bahauddin Zakariya UniversityMultan 60800Pakistan College of Food Engineering and Nutritional Science Shaanxi Normal UniversityXi’an 710119China College of Horticulture Hebei Agricultural UniversityBaodingHebei 071000China

FUSCA3(FUS3)is a member of B3-domain transcription factor family and master regulator of seed *** has potential roles in hormone biosynthesis and signaling pathways and therefore plays diverse roles in plant life cycle,especially in seed germination,dormancy,embryo formation,seed and fruit development,and ***,there is limited information about its functions in seed and fruit development of *** this study,we expressed VvFUS3 in tomato for its functional *** of VvFUS3 in tomato led to a reduction in seed number and seed weight without affecting the fruit *** analysis found that both cell expansion and cell division in transgenic seed and fruit pericarp have been ***,there were no obvious differences in pollen size,shape,and viability,suggesting that VvFUS3 affects seed development but not the pollen ***,the expression of several genes with presumed roles in seed development and hormone signaling pathways was also influenced by *** results suggest that VvFUS3 is involved in hormonal signaling pathways that regulate seed number and *** conclusion,our study provides novel preliminary information about the pivotal roles of VvFUS3 in seed and fruit development and these findings can potentially serve as a reference for molecular breeding of seedless grapes.

关键词： Vitis vinifera L. ABI3 B3 transcription factor seed number Endoreduplication Hormone

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Effects of grazing intensity on seed production of Caragana stenophylla along a climatic aridity gradient in the Inner Mongolia Steppe,China

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Journal of Arid Land 2016年第6期8卷 890-898页

作者： XIE Lina CHEN Weizhong Christopher A GABLER HAN Lei GUO Hongyu CHEN Qing MA Chengcang GU Song College of Life Sciences Nankai University Tianjin Key Laboratory of Animal and Plant Resistance College of Life SciencesTianjin Normal University Department of Biology and Biochemistry University of Houston

As the increases of climatic aridity and grazing intensity, shrubs play an increasingly important role in grassland ecosystem in arid and semi-arid regions, and its abundance also generally increases. However, the effects of climatic aridity and grazing intensity on sexual reproduction of shrubs in grassland remain largely unclear. In order to understand the effects of grazing intensity and climatic drought stress, and their interaction on seed production of shrub species, we examined the seed number, seed weight and seed yield of Caragana stenophylla under three grazing intensities （fenced, mild grazing and severe grazing） across a climatic aridity gradient （semi-arid, arid, very arid and intensively arid zones） in the Inner Mongolia Steppe, northern China during 2012-2013. The seed number, seed weight and seed yield gradually increased from the semi-arid to the very arid zones, but decreased from the very arid to the intensively arid zones in fenced plots. The seed number and seed yield decreased from the semi-arid to the intensively arid zones in mild and severe grazing treatment plots, therefore, grazing enhanced the suppression effect of climatic aridity on seed production of C. stenophylla. The seed number and seed yield gradually decreased as grazing intensity increased. The seed weight was highest in severe grazing plots, followed by the mild grazing plots and then the fenced plots. Precipitation varied interannually during the study period. We observed that the seed number seed weight and seed yield were lower in the low precipitation year （2013） than in the high precipitation year （2012）. As climatic drought stress increased, the negative effects of grazing on seed production of C. stenophylla also gradually increased. Our results indicated that climatic drought stress may contribute to the encroachment of C. stenophylla shrub in arid zones by promoting its seed production. However, grazing had negative effects on sexual reproduction of C. stenophylla, and

关键词： grazing seed number seed weight seed yield arid and semi-arid zones Caragana stenophylla

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seed size-and density-related hidden treatments in common biodiversity experiments

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Journal of Plant Ecology 2011年第3期4卷 132-137页

作者： Qinfeng Guo USDA Forest Service Eastern Forest Environmental Threat Assessment Center200 WT Weaver BoulevardAshevilleNC 28804USA

Aims With a few exceptions,most well-known field biodiversity experiments on ecosystem functioning have been conducted in plant communities(especially grasslands)in which different numbers of species are planted as *** these experiments,investigators have either kept the total seed weight or seed number constant across treatment ***,although in some cases attempts have been made to randomly choose species for planting from a designated species pool,the issue of possible‘hidden treatments’remains ***,the total and relative abundance among species and across treatments could still affect the *** study aims to determine whether treatments related to planted seed abundance and seed size may contribute to observed *** We re-analyzed data from four biodiversity experiments based on a common seeding design(*** treatments).Important Findings We show that diversity(richness)treatments usually involve a hidden treatment related to the planted seeds(***,number and seed size)that ultimately affect plant ***,the un-intended hidden treatment of seeding more seeds on more diverse plots contributes to the productivity to some *** derivative but often neglected hidden treatments are important for further improvement of experimental design and have significant implications in ecological restoration.

关键词： experimental design productivity restoration seed number seed weight

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