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Coupling of reduced inorganic fertilizer with plant-based organic fertilizer as a promising fertilizer management strategy for colored rice in tropical regions

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Journal of Integrative Agriculture 2024年第1期23卷 93-107页

作者： Tingcheng Zhao Aibin He Mohammad Nauman Khan Qi Yin Shaokun Song Lixiao Nie Research Center for Physiology and Ecology and Green cultivation of Tropical crops School of Breeding and Multiplication(Sanya Institute of Breeding and Multiplication)Hainan UniversitySanya 572000China

Colored rice is a type of high-quality,high-added-value rice that has attracted increasing attention in recent *** use of large amounts of inorganic nitrogen fertilizer in rice fields results in low fertilizer use efficiency and high environmental *** fertilizer is a promising way to improve soil quality and sustain high ***,most studies focus on the effect of animal-based organic *** effects of different ratios of plantbased organic fertilizer and inorganic fertilizer on the grain yield and quality of colored rice have rarely been ***,a two-year field experiment was conducted in 2020 and 2021 to study the effects of replacing inorganic N fertilizers with plant-based organic fertilizers on the yield,nitrogen use efficiency(NUE),and anthocyanin content of two colored rice varieties in a tropical region in *** experimental treatments included no nitrogen fertilization(T1),100% inorganic nitrogen fertilizer(T2),30%inorganic nitrogen fertilizer substitution with plant-based organic fertilizer(T3),60%inorganic nitrogen fertilizer substitution with plant-based organic fertilizer(T4),and 100% plantbased organic fertilizer(T5).The total nitrogen provided to all the treatments except T1 was the same at 120 kg *** results showed that the T3 treatment enhanced the grain yield and anthocyanin content of colored rice by increasing nitrogen use efficiency compared with *** average,grain yields were increased by 9 and 8%,while the anthocyanin content increased by 16 and 10% in the two colored rice varieties under T3 across the two years,respectively,as compared with *** study of the residual effect of partial substitution of inorganic fertilizers showed that the substitution of inorganic fertilizer with plant-based organic fertilizer improved the soil physiochemical properties,and thus increased the rice grain yield,in the subsequent *** highest grain yield of the subsequent rice crop was observe

关键词： colored rice organic fertilizer soil quality grain yield anthocyanin

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Rice bran polysaccharide ameliorates ovalbumin-induced allergy and improves gut microbiota composition

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Food Science and Human Wellness 2024年

作者： Bingjie Chen Yongjin Qiao Chong Wang Xiao Wang Yi Zhang Linglin Fu School of Food Science and Biotechnology， Zhejiang Gongshang University institute of crop breeding and cultivation， Shanghai Academy of Agricultural Science

This study is the first investigation of the effects of polysaccharide extracted from rice bran (RBP) on ovalbumin (OVA)-induced allergy and the gut microbiota， which hasn't been reported previously. RBP in the medium-dose was found to significantly reduce the symptoms of food allergy (FA) in mice， lower the levels of histamine and allergen-specific (IgE)， and attenuate intestinal inflammation. Further studies demonstrated that RBP decreased allergy-associated responses in intestinal epithelial cells and Th2 cells while regulating Th1/Th2 differentiation to reach a dynamic equilibrium and downregulating Th2 polarization caused by allergies. Short-chain fatty acid (SCFAs) content and 16S rRNA sequencing revealed that RBP enhanced the abundance and diversity of the gut microflora and raised the content of SCFAs. These results suggest that RBP may mitigate FA by modulating the gut microbiota. This study revealed the effective use of rice bran and served as a basis for the development of innovative functional foods with anti-allergic properties.

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GmSTF accumulation mediated by DELLA protein GmRGAs contributes to coordinating light and gibberellin signaling to reduce plant height in soybean

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The crop Journal 2024年第2期12卷 432-442页

作者： Zhuang Li Qichao Tu Xiangguang Lyu Qican Cheng Ronghuan Ji Chao Qin Jun Liu Bin Liu Hongyu Li Tao Zhao State Key Laboratory of crop Gene Resources and breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Plant height influences plant architecture,lodging resistance,and yield *** is modulated by gibberellic acid(GA)metabolism and *** proteins,acting as central repressors of GA signaling,integrate various environmental and hormonal signals to regulate plant growth and development in *** examined the role of two DELLA proteins,GmRGAa and GmRGAb,in soybean plant height *** of these proteins led to longer internodes and increased plant height,primarily by increasing cell *** functioned under different light conditions,including red,blue,and far-red light,to repress plant *** studies revealed that GmRGAs interacted with the blue light receptor *** with this,GmCRY1b partially regulated plant height via ***,DELLA proteins were found to stabilize the protein GmSTF1/2,a key positive regulator of *** stabilization led to increased transcription of GmGA2ox-7b and subsequent reduction in plant *** study enhances our understanding of DELLA-mediated plant height control,offering Gmrgaab mutants for soybean structure and yield optimization.

关键词： DELLA protein GmRGAs GmSTFs Plant height Soybean

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A k-mer-based pangenome approach for cataloging seed-storage-protein genes in wheat to facilitate genotype-to-phenotype prediction and improvement of end-use quality

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Molecular Plant 2024年第7期17卷 1038-1053页

作者： Zhaoheng Zhang Dan Liu Binyong Li Wenxi Wang Jize Zhang Mingming Xin Zhaorong Hu Jie Liu Jinkun Du Huiru Peng Chenyang Hao Xueyong Zhang Zhongfu Ni Qixin Sun Weilong Guo Yingyin Yao Frontiers Science Center for Molecular Design breeding Key Laboratory of Crop Heterosis and Utilization(MOE)and Bejing Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing100193China Key Laboratory of crop Gene Resources and breeding Institute of Crop ScienceChinese Academy of Agricultural SciencesBejingChina

Wheat is a staple foodfor more than 35%of the world's population,with wheatflourused to make hundreds of baked *** end-use quality is a major breeding target;however,improving it is especially time-consuming and ***,genes encoding seed-storage proteins(ssPs)form multigene families and are repetitive,with gaps commonplace in several genome *** overcome these barriers and efficiently identify superior wheat SSP alleles,we developed"PanSK"(Pan-SSP k-mer)for genotype-to-phenotype prediction based on an SsP-based pangenome *** uses 29-mer sequences that represent each ssP gene at the pangenomic level to reveal untapped diversity across landraces and modern ***-wide association studies with k-mers identified 23 Ssp genes associated with end-use quality that represent novel targets for *** evaluated the effect of rye secalin genes on end-use quality and found that removal of w-secalins from 1BL/1RS wheat translocation lines is associated with enhanced end-use ***,using machine-learning-based prediction inspired by PanSK,we predicted the quality phenotypes with high accuracy from genotypes *** study provides an effective approach for genome design based on ssP genes,enabling the breeding of wheat varieties with superior processing capabilities and improved end-use quality.

关键词： wheat seed-storage protein end-use quality k-mer pangenome genomic prediction

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The gene encoding flavonol synthase contributes to lesion mimic in wheat

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The crop Journal 2024年第3期12卷 814-825页

作者： Tingting Dong Hongchun Xiong Huijun Guo Yongdun Xie Linshu Zhao Jiayu Gu Huiyuan Li Shirong Zhao Yuping Ding Xiyun Song Luxiang Liu College of Life Sciences Key Laboratory of Major Crop Germplasm Innovation and Application in QingdaoQingdao Agricultural UniversityQingdao 266109ShandongChina State Key Laboratory of crop Gene Resources and breeding/National Engineering Laboratory of crop Molecular breeding/CAEA Research and Development Centre on Nuclear Technology Applications for Irradiation Mutation breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Lesion mimic often exhibits leaf disease-like symptoms even in the absence of pathogen infection,and is characterized by a hypersensitive-response(HR)that closely linked to plant disease *** this,only a few lesion mimic genes have been identified in *** this investigation,a lesion mimic wheat mutant named je0297 was discovered,showing no alteration in yield components when compared to the wild type(WT).Segregation ratio analysis of the F_(2)individuals resulting from the cross between the WT and the mutant revealed that the lesion mimic was governed by a single recessive gene in *** Bulked segregant analysis(BSA)and exome capture sequencing,we mapped the lesion mimic gene designated as lm6 to chromosome *** gene fine mapping using 3315 F_(2)individuals delimited the lm6 within a 1.18 Mb *** this region,we identified 16 high-confidence genes,with only two displaying mutations in ***,one of the two genes,responsible for encoding flavonol synthase,exhibited altered expression *** phenotype analysis of TILLING mutants confirmed that the gene encoding flavonol synthase was indeed the causal gene for *** sequencing analysis revealed that the DEGs between the WT and mutant were significantly enriched in KEGG pathways related to flavonoid biosynthesis,including flavone and flavonol biosynthesis,isoflavonoid biosynthesis,and flavonoid biosynthesis ***,more than 30 pathogen infection-related(PR)genes exhibited upregulation in the *** to this expression pattern,the flavonoid content in je0297 showed a significant decrease in the 4^(th)leaf,accompanied by a notable accumulation of reactive oxygen,which likely contributed to the development of lesion mimic in the *** investigation enhances our comprehension of cell death signaling pathways and provides a valuable gene resource for the breeding of disease-resistant wheat.

关键词： Lesion mimic mutant Wheat Gene mapping Flavonol synthase gene Flavonoid

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One bird,multiple stones:The race to find a gene of dominant negative effect in wheat

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The crop Journal 2024年第4期12卷 951-952页

作者： Long Mao State Key Laboratory of crop Gene Resources and breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

In the current issue of The crop Journal,Chen et al.[1]reports map-based cloning of a wheat gene that showed temperaturedependent pleiotropic effects on multiple traits including plant height,leaf shape,spike and grain morphology,and accordingly was named WPA1 for Wheat Plant Architecture *** mutant was first observed among EMS-treated plants and repeatedly appeared in multiple occasions.

关键词： Wheat bird repeatedly

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Genetic and molecular mechanisms of reproductive isolation in the utilization of heterosis for breeding hybrid rice

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Journal of Genetics and Genomics 2024年第6期51卷 583-593页

作者： Chaolong Wang Xiaowen Yu Jian Wang Zhigang Zhao Jianmin Wan State Key Laboratory for crop Genetics&Germplasm Enhancement and Utlization Nanjing Agricultural UniversityZhongshan Biological Breeding LaboratoryNanjingJiangsu210095China State Key Laboratory of crop Gene Resources and breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Heterosis,also known as hybrid vigor,is commonly observed in rice *** hybridization of rice species or subspecies exhibits robust hybrid vigor,however,the direct harnessing of this vigor is hindered by reproductive ***,we review recent advances in the understanding of the molecular mechanisms governing reproductive isolation in inter-subspecific and inter-specific *** review encompasses the genetic model of reproductive isolation within and among Oryza sativa species,emphasizing the essential role of mitochondria in this ***,we delve into the molecular intricacies governing the interaction between mitochondria and autophagosomes,elucidating their significant contribution to reproductive ***,our exploration extends to comprehending the evolutionary dynamics of reproductive isolation and speciation in *** on these advances,we offer a forward-looking perspective on how to overcome the challenges of reproductive isolation and facilitate the utilization of heterosis in future hybrid rice breeding endeavors.

关键词： Hybrid vigor Reproductive isolation Hybrid ricebreeding

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Fine mapping of two recessive genes TaFLA1 and TaSPL8 controlling flag leaf angle in bread wheat

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The crop Journal 2024年第4期12卷 1159-1167页

作者： Qiushi Wang Jiaxing Bai Hongchun Xiong Yongdun Xie Chaojie Wang Jiayu Gu Linshu Zhao Huiyuan Li Jinfeng Zhang Shirong Zhao Yuping Ding Zhengwu Fang Huijun Guo Luxiang Liu College of Agriculture Yangtze University/MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River(Co-Construction by Ministry and Province)Jingzhou 434000HubeiChina State Key Laboratory of crop Gene Resources and breeding/National Engineering Laboratory of crop Molecular breeding/CAEA Research and Development Centre on Nuclear Technology Applications for Irradiation Mutation breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Flag leaf angle is one of the key target traits in high yield wheat breeding.A smaller flag leaf angle reduces shading and enables plants to grow at a higher density,which increases *** we identified a mutant,je0407,with an 84.34%-89.35%smaller flag leaf angle compared with the wild *** mutant also had an abnormal lamina joint and no ligule or *** analysis indicated that the ligule was controlled by two recessive genes,which were mapped to chromosomes 2AS and *** mutant allele on chromosome 2AS was named Tafla1b,and it was fine mapped to a 1 Mb physical *** mutant allele on chr.2DL was identified as Taspl8b,a novel allele of TaSPL8 with a missense mutation in the second exon,which was used to develop a cleaved amplified polymorphic sequence marker.F3 and F4 lines derived from crosses between Jing411 and je0407 were genotyped to investigate interactions between the Tafla1b and Taspl8b *** with the Tafla1b/Taspl8a genotype had 58.41%-82.76%smaller flag leaf angles,6.4%-24.9%shorter spikes,and a greater spikelet density(0.382 more spikelets per cm)compared with the wild *** with the Tafla1a/Taspl8b genotype had 52.62%-82.24%smaller flag leaf angles and no differences in plant height or spikelet density compared with the wild ***1b/Taspl8b plants produced erect leaves with an abnormal lamina *** two alleles had dosage effects on ligule formation and flag leaf angle,but no significant effect on thousand-grain *** mutant alleles provide novel resources for improvement of wheat plant architecture.

关键词： Wheat Ligule Flag leaf angle Fine mapping Tafla1 Taspl8

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GmNF-YC4 delays soybean flowering and maturation by directly repressing GmFT2a and GmFT5a expression

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Journal of Integrative Plant Biology 2024年第7期66卷 1370-1384页

作者： Yupeng Cai Li Chen Xiaoqian Liu Weiwei Yao Wensheng Hou State Key Laboratory of crop Gene Resources and breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Ministry of Agriculture Key Laboratory of Soybean Biology(Beijing) Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Flowering time and growth period are key agronomic traits which directly affect soybean(Glycine max(L.)Merr.)adaptation to diverse latitudes and farming *** FLOWERING LOCUS T(FT)homologs GmFT2a and GmFT5a integrate multiple flowering regulation pathways and significantly advance flowering and maturity in *** the genes responsible for regulating GmFT2a and GmFT5a will improve our understanding of the molecular mechanisms governing growth period in *** this study,we identified the Nuclear Factor Y-C(NFY-C)protein GmNF-YC4 as a novel flowering suppressor in soybean under long-day(LD)***-YC4 delays flowering and maturation by directly repressing the expression of GmFT2a and *** addition,we found that a strong selective sweep event occurred in the chromosomal region harboring the GmNF-YC4 gene during soybean *** GmNF-YC4Hap3 allele was mainly found in wild soybean(Glycine soja Siebold&Zucc.)and has been eliminated from *** landraces and improved cultivars,which predominantly contain the GmNF-YC4Hap1 ***,the Gmnf-yc4 mutants displayed notably accelerated flowering and maturation under LD *** alleles may prove to be valuable genetic resources for enhancing soybean adaptability to higher latitudes.

关键词： CRISPR/Cas9 early flowering and maturity GmNF-YC4 regional adaptability soybean

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A historical review of hybrid rice breeding

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Journal of Integrative Plant Biology 2024年第3期66卷 532-545页

作者： Xiaoming Zheng Fei Wei Cheng Cheng Qian Qian State Key Laboratory of crop Gene Resources and breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Yazhouwan National Laboratory Sanya City 572024China

The development of germplasm resources and advances in breeding methods have led to steady increases in yield and quality of rice (Oryza sativa L.). Three milestones in the recent history of rice breeding have contributed to these increases: dwarf rice breeding, hybrid rice breeding, and super rice breeding. On the 50th anniversary of the success of three-line hybrid rice,we highlight important scientific discoveries in rice breeding that were made by Chinese scientists and summarize the broader history of the field. We discuss the strategies that could be used in the future to optimize rice breeding further in the hope that China will continue to play a leading role in international rice breeding.

关键词： Chinese experience dwarf breeding hybrid rice breeding super rice breeding

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