检索结果-南通市图书馆

De novo design of future rapeseed crops:Challenges and opportunities

在线全文

学校读者我要写书评

暂无评论

The Crop Journal 2022年第3期10卷 587-596页

作者： Shengyi Liu Harsh Raman Yang Xiang Chuanji Zhao junyan huang Yuanyuan Zhang Key Laboratory of Biology and Genetic Improvement of Oil Crops the Ministry of Agriculture and Rural AffairsOil Crops Research InstituteChinese Academy of Agricultural SciencesWuhan 430062HubeiChina NSW Department of Primary Industries Wagga Wagga Agricultural InstituteWagga WaggaNSW 2650Australia Guizhou Rapeseed Institute Guizhou Academy of Agricultural SciencesGuiyang 550008GuizhouChina

To address the global demand for rapeseed while considering farmers’profit,we face the challenges of making a quantum leap in seed yield and,at the same time,reducing yield loss due to biotic and abiotic *** also face the challenge of efficiently applying new transformative biotechnology tools such as gene editing and breeding by genome design to increase rapeseed productivity and *** this Perspective,we review advances in research on the physiological and genetic bases of both stress factorsaffected yield stability and seed yield potential,focusing on source–sink relationships and allocation of photosynthetic assimilates to vegetative growth and seed *** propose research directions and highlight the role of plant architecture in the relative contributions of the root system,leaves,and pods to seed *** call for de novo design of new rapeseed *** review trait variation in existing germplasm and biotechnologies available for crop ***,we discuss opportunities to apply fundamental knowledge and key germplasm to rapeseed production and propose an ideotype for de novo design of future rapeseed cultivars.

关键词： Oilseed rape Seed yield Stress tolerance Physiological basis Ideotype Gene editing Breeding by genome design

宫腔压力检测辅助四维宫腔输卵管超声造影评估输卵管通畅性的临床价值

在线全文

学校读者我要写书评

暂无评论

中国妇幼健康研究 2024年第5期35卷 76-83页

作者：邓妍妍黄军艳马春花文燕平唐炯炯永州市中心医院超声科湖南永州425000 隆回县妇幼保健计划生育服务中心超声科湖南邵阳422200

目的探讨宫腔压力检测在四维宫腔输卵管超声造影(4D-HyCoSy)评估输卵管通畅性中的辅助作用及临床价值。方法选择2019年2月至2022年9月在永州市中心医院就诊并接受治疗的132例疑似卵管性不孕患者为研究对象。所有患者均接受4D-HyCoSy... 详细信息

目的探讨宫腔压力检测在四维宫腔输卵管超声造影(4D-HyCoSy)评估输卵管通畅性中的辅助作用及临床价值。方法选择2019年2月至2022年9月在永州市中心医院就诊并接受治疗的132例疑似卵管性不孕患者为研究对象。所有患者均接受4D-HyCoSy检查。以腹腔镜通液检测结果为诊断金标准,与4D-HyCoSy检查结果的诊断进行对比分析。采用受试者工作特征(ROC)曲线和Logistic回归模型分析宫腔压力检测辅助4D-HyCoSy检查在输卵管通畅性诊断中的应用价值。结果对132例患者完成了4D-HyCoSy检查,在264条输卵管中,145条通畅(54.92%)、77条通而不畅(29.17%)、42条完全阻塞(15.91%);腹腔镜通液检测结果显示,有132条通畅(50.00%)、77条通而不畅(29.17%)、55条完全阻塞(20.83%)。在4D-HyCoSy检查中,有216条输卵管符合腹腔镜通液检测结果,诊断符合率为81.82%(216/264);其中4D-HyCoSy检查与腹腔镜通液检测输卵管通畅的诊断符合率最高,为93.18%(123/132)。从输卵管的功能角度分层评估,4D-HyCoSy检查与腹腔镜通液检测输卵管的诊断符合率为86.36%(114/132)。双侧通畅(A组)、不完全通畅(B组)、双侧阻塞(C组)三组宫腔压力峰值比较差异有统计学意义(F=39.334,P<0.001)。A组与B组、A组与C组、B组与C组之间的宫腔压力峰值比较差异均有统计学意义(t值分别为28.178、66.049、30.774,P<0.001),阻塞越严重,宫腔压力峰值越大。ROC曲线分析显示,宫腔压力检测辅助4D-HyCoSy评估输卵管通畅性预测模型的曲线下面积(AUC)为0.853、灵敏度为88.13%、特异度为79.46%,明显高于4D-HyCoSy单项诊断结果。结论宫腔压力检测辅助4D-HyCoSy检查可显著提高输卵管通畅性的诊断效能,其可作为临床评估输卵管通畅性的有效诊断方法,可在临床推广应用。

关键词：不孕症输卵管疾病宫腔压力四维宫腔输卵管超声造影

Mapping loci controlling fatty acid profiles, oil and protein content by genome-wide association study in Brassica napus

在线全文

学校读者我要写书评

暂无评论

The Crop Journal 2019年第2期7卷 217-226页

作者： Minqiang Tang Yuanyuan Zhang Yueying Liu Chaobo Tong Xiaohui Cheng Wei Zhu Zaiyun Li junyan huang Shengyi Liu The Key Laboratory of Biology and Genetic Improvement of Oil Crops The Ministry of Agriculture Oil Crops Research Institute of Chinese Academy of Agricultural Sciences National Key Laboratory of Crop Genetic Improvement National Center of Crop Molecular Breeding Technology National Center of Oil Crop Improvement (Wuhan) Huazhong Agricultural University Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources Faculty of Life Science Hubei University

Optimizing the profile and quantity of fatty acids in rapeseed(Brassica napus L.) is critical for maximizing the value of edible oil and biodiesel. However, selection of these complex seed quality traits is difficult before haplotypes controlling their contents are identified. To efficiently identify genetic loci influencing these traits and underlying candidate genes and networks, we performed a genome-wide association study(GWAS) of eight seed quality traits(oil and protein content, palmitic, stearic, oleic, linoleic, eicosenoic and erucic acids content). The GWAS population comprised 370 diverse accessions, which were phenotyped in five environments and genotyped using 60K SNP arrays. The results indicated that oil and protein contents generally showed negative correlations, while fatty acid contents showed positive or negative correlations,with palmitic and erucic acid contents directly affecting oil content. Seven SNPs on five chromosomes were associated with both seed oil and protein content, and five genes orthologous to genes in Arabidopsis thaliana were predicted as candidates. From resequencing data, besides known haplotypes in Bna ***1.a and Bna ***1.a, three accessions harboring a new haplotype conferring moderate erucic acid content were identified. Interestingly, in a haplotype block, one haplotype was associated with high palmitic acid content and low oil content, while the others showed the reverse effects. This finding was consistent with a negative correlation between palmitic acid and oil contents, suggesting historical selection for high oil content. The identification by this study of genetic variation and complex correlations of eight seed quality traits may be beneficial for crop selection strategies.

关键词： Brassica napus Oil content Fatty acid profiles Association study Haplotypes

Functional and Evolutionary Study of MLO Gene Family in the Regulation of Sclerotinia Stem Rot Resistance in Brassica napus L.

在线全文

学校读者我要写书评

暂无评论

Functional and Evolutionary Study of MLO Gene Family in the ...

宫腔镜检查在诊断子宫内膜病变中的应用价值评价

中国植物病理学会2023年学术年会

作者： WU Yupo FU Tongyu HOU Jiachang LIU Jie huang junyan LIU Lijiang LIU Shengyi The Key Laboratory of Biology and Genetic Improvement of Oil Crops the Ministry of Agriculture and Rural Affairs of the PRC Oil Crops Research Institute Chinese Academy of Agricultural Sciences

Sclerotinia stem rot(SSR),a destructive disease caused by the fungus Sclerotinia sclerotiorum,is a major factor limiting the yield and quality of oilseed rape in the *** SSR resistance in *** is quantitative and(controlled by a set of minor *** of these genes and pyramiding them into a variety are a major strategy for SSR resistance breeding in ***,a genomewide association study(GWAS) using a natural population of *** consisting of 222 accessions are identify BnaA08 g25340 D(BnML02) as a candidate gene that regulates the SSR *** expressed BnMLO2_ 2 in Arabidopsis and the transgenic plants displayed an enhanced SSR *** profiling of different tissues of *** revealed that BnML02 had the most expression level in leaf and silique tissues among all the 7 BnMLO2 members and also expressed higher in the SSR resistant accession than in the susceptible *** of ML02 conferred plants an enhanced SSR resistance whereas mlo2 plants displayed reduced resistance to SSR in *** regulation of MLO2 in SSR resistance may be associated with cell *** and phylogenetic;analysis revealed a large expansion of MLO family in Brassica *** study revealed an important role of BnMLO2 in the regulation of SSR resistance and provided a new gene candidate for future improvement of SSR resistance in *** and also new insights into understanding MLO family evolution in Brassica crops.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

实用妇科内分泌电子杂志 2022年第35期9卷 76-78页

作者：黄君燕广西壮族自治区江滨医院妇产科广西南宁530021

目的探析子宫内膜病变诊断中应用宫腔镜检查的有效性。方法选择56例子宫内膜病变患者,根据随机数字表法分为对照组(28例,阴道超声检查)和观察组(28例,宫腔镜检查)。统计两组检查方式的漏诊、误诊情况,计算两组诊断准确率并进行比较。结... 详细信息

目的探析子宫内膜病变诊断中应用宫腔镜检查的有效性。方法选择56例子宫内膜病变患者,根据随机数字表法分为对照组(28例,阴道超声检查)和观察组(28例,宫腔镜检查)。统计两组检查方式的漏诊、误诊情况,计算两组诊断准确率并进行比较。结果观察组的诊断准确率(96.43%)高于对照组(67.86%),差异有统计学意义(P<0.05)。结论子宫内膜病变诊断中应用宫腔镜检查准确率高,具有较高的诊断效能。

关键词：子宫内膜病变宫腔镜阴道超声漏诊误诊准确率

Syntenic quantitative trait loci and genomic divergence for Sclerotinia resistance and ?owering time in Brassica napus

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2019年第1期61卷 75-88页

作者： Fengqi Zhang junyan huang Minqiang Tang Xiaohui Cheng Yueying Liu Chaobo Tong Jingyin Yu Tehrim Sadia Caihua Dong Lingyan Liu Baojun Tang Jianguo Chen Shengyi Liu Key Laboratory of Biology and Genetic Improvement of Oil Crops the Ministry of AgricultureOil Crops Research Institute of CAAS Cereal Crops Research Institute Henan Academy of Agricultural Sciences Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources Faculty of Life ScienceHubei University

Oilseed rape(Brassica napus) is an allotetraploid with two subgenomes descended from a common ancestor. Accordingly, its genome contains syntenic regions with many duplicate genes, some of which may have retained their original functions, whereas others may have diverged. Here, we mapped quantitative trait loci(QTL) for stem rot resistance(SRR), a disease caused by the fungus Sclerotinia sclerotiorum, and flowering time(FT) in a recombinant inbred line population. The population was genotyped using *** 60 K single nucleotide polymorphism arrays and phenotyped in six(FT) and nine(SSR) experimental conditions or environments. In total, we detected 30 SRR QTL and 22 FT QTL and show that some of the major QTL associated with these two traits were co-localized,suggesting a genetic linkage between them. Two SRR QTL on chromosome A2 and two on chromosome C2 were shown to be syntenic, suggesting the functional conservation of these regions. We used the syntenic properties of the genomic regions to exclude genes for selection candidates responsible for QTL-associated traits. For example, 152 of the 185 genes could be excluded from a syntenic A2–C2 region. These findings will help to elucidate polyploid genomics in future studies, in addition to providing useful information for B. napus breeding programs.

关键词： napus Oilseed rape

Corrigendum to“De novo design of future rapeseed crops:Challenges and opportunities”[Crop J.10(2022)587-596]

在线全文

学校读者我要写书评

暂无评论

The Crop Journal 2022年第4期10卷 1219-1219页

作者： Shengyi Liu Harsh Raman Yang Xiang Chuanji Zhao junyan huang Yuanyuan Zhang Key Laboratory of Biology and Genetic Improvement of Oil Crops the Ministry of Agriculture and Rural AffairsOil Crops Research Institutethe Chinese Academy of Agricultural SciencesWuhan 430062HubeiChina NSW Department of Primary Industries Wagga Wagga Agricultural InstituteWagga WaggaNSW 2650Australia Guizhou Rapeseed Institute Guizhou Academy of Agricultural SciencesGuiyang 550008GuizhouChina

The authors regret to report some mistakes in the text and associated changes necessary to section 4.1 of the *** page 591 in the right-hand column,line 34,“far light”should be changed to“far-red light”.On page 592 in the left-hand column,line 28,the sentence reads:“If the YP/FP ratio can be as high as 42%(the average YP/FP of the UK and *** S2),the farm yield will be 5.0 t ha1.”

关键词： crops mistake sentence

Mutation of the PHYTOENE DESATURASE 3 gene causes yellowish-white petals in Brassica napus

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Crop Journal 2021年第5期9卷 1124-1134页

作者： Chuanji Zhao Luqman Bin Safdar Meili Xie Meijuan Shi Zhixue Dong Li Yang Xiaohui Cheng Yueying Liu Zetao Bai Yang Xiang Chaobo Tong junyan huang Lijiang Liu Shengyi Liu Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/The Key Laboratory of Biology and Genetic Improvement of Oil Crops The Ministry of Agriculture and Rural AffairsWuhan 430062HubeiChina National Key Laboratory of Crop Genetic Improvement National Center of Rapeseed ImprovementHuazhong Agricultural UniversityWuhan 430070HubeiChina Biosystematics Group Experimental Plant SciencesWageningen University and ResearchWageningenNetherlands Guizhou Rapeseed Institute Guizhou Academy of Agricultural SciencesGuiyang 550008GuizhouChina

Oilseed rape (Brassica napus) with yellow flowers is an attractive ornamental landscape plant during the flowering period,and the development of different petal colors has become a breeding *** yellowish flower color is a common variant observed in field-grown oilseed rape,the genetics behind this variation remains *** obtained a yellowish-white flower (ywf) mutant from Zhongshuang 9 (ZS9) by ethyl methanesulfonate mutagenesis (EMS) *** with ZS9,ywf exhibited a lower carotenoid content with a reduced and defective chromoplast ultrastructure in the *** analysis revealed that the yellowish-white trait was controlled by a single recessive *** bulked-segregant analysis sequencing (BSA-seq) and kompetitive allele-specific PCR(KASP),we performed map-based cloning of the ywf locus on chromosome A08 and found that ywf harbored a C-to-T substitution in the coding region,resulting in a premature translation ***,encoding phytoene desaturase 3 (PDS3),was highly expressed in oilseed rape petals and involved in carotenoid *** enrichment analysis of the transcriptome profiles from ZS9 and ywf indicated the carotenoid biosynthesis pathway to be highly *** analyses of differentially expressed genes and carotenoid components revealed that the truncated Bna ***3 resulted in decreased carotenoid biosynthesis in the *** results contribute to an understanding of the carotenoid biosynthesis pathway and manipulation of flower-color variation in ***.

关键词： Yellowish-white flower BSA-seq RNA-seq BnaA08.PDS3 Carotenoid biosynthesis

掺杂质子化石墨相氮化碳增强碳基太阳能电池中钙钛矿的结晶质量

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Physics 2022年第2期35卷 390-398,I0004页

作者：郭明星刘文超黄均妍刘佳琦尹淑慧冷静大连海事大学环境科学与工程学院大连116026 大连海事大学理学院大连116026 中国科学院大连化学物理研究所分子反应动力学国家重点实验室大连116023

钙钛矿层的品质极大影响钙钛矿太阳能电池性能.然而,在溶液法生成多晶钙钛矿膜过程中会不可避免地形成缺陷和陷阱位.通过在钙钛矿层中嵌入添加物改善钙钛矿晶化,用于减少和钝化缺陷是非常重要的.本文合成一种环境友好的二维纳米材料质... 详细信息

钙钛矿层的品质极大影响钙钛矿太阳能电池性能.然而,在溶液法生成多晶钙钛矿膜过程中会不可避免地形成缺陷和陷阱位.通过在钙钛矿层中嵌入添加物改善钙钛矿晶化,用于减少和钝化缺陷是非常重要的.本文合成一种环境友好的二维纳米材料质子化石墨相氮化碳(p-g-C_(3)N_(4)),并掺杂于碳基钙太阳能电池的钙钛矿层中.实验证明,在钙钛矿前驱体溶液中添加p-g-C_(3)N_(4)不仅能调解碘铅甲胺(MAPbI_(3))结品的成核和生长速率,获得大晶粒尺寸的平滑表面,还能减少钙钛矿层的本征缺陷.质子化过程在氮化碳表面引入活性基团-NH_(2)/-NH_(3),它们和钙钛矿晶体表面N-H键发生强化学作用,有效地钝化电子陷阱,提高钙钛矿结晶质量.结果表明,与不掺杂的对照电池(效率为4.48%)和掺杂石墨相氮化碳(g-C_(3)N_(4))电池(效率为5.93%)相比,掺杂质子化石墨相氮化碳(p-g-C_(3)N_(4))的电池获得了6.61%的较高效率.本工作展示了一种通过掺杂改性添加物改善钙钛矿膜的简单方法,为碳基钙钛矿太阳能电池的低成本制备提供了建议.

关键词：钙钛矿太阳能电池碳对电极 p-g-C_(3)N_(4) 结晶质量光电性能