Identification of new cotton fiber-quality QTL by multiple genomic analyses and development of markers for genomic breeding

Cotton fiber is one of the main raw materials for the textile industry.In recent years,many cotton fiber quality QTL have been identified,but few were applied in breeding.In this study,a genome wide association study(GWAS)of fiber-quality traits in 265 upland cotton breeding intermediate lines(GhBreeding),combined with genome-wide selective sweep analysis(GSSA)and genomic selection(GS),revealed 25 QTL.Most of these QTL were ignored by only using GWAS.The CRISPR/Cas9 mutants of GhMYB_D13 had shorter fiber,which indicates the credibility of QTL to a certain extent.Then these QTL were verified in other cotton natural populations,5 stable QTL were found having broad potential for application in breeding.Additionally,among these 5 stable QTL,superior genotypes of 4 showed an enrichment in most improved new varieties widely cultivated currently.These findings provide insights for how to identify more QTL through combined multiple genomic analysis to apply in breeding.

“怀才不遇”的员工为何抗令创新:基于心理抗拒理论的解释

人工智能开始取代技术岗位,加剧了资质过剩在组织中的存在,而智能驱动的创新日益决定企业存亡,引导资质过剩员工立足岗位创新是因应之策。然而,创新作为高失败风险的活动,被领导喝止是一种常态,资质过剩者会不会冒着抗令风险持续创新?鉴于资质过剩员工具有重塑自我价值的动机以及开展创新必备的时间精力保障,本研究基于心理抗拒理论,考察了资质过剩感与抗令创新之间的关系,并探讨了内在职业目标与证明自我能力动机对两者关系的影响。本研究对长三角地区16家企业486名员工进行二阶段问卷调查,分析结果显示:(1)资质过剩感对抗令创新有显著正向影响;(2)内在职业目标正向调节资质过剩感与抗令创新之间的关系;(3)证明自我能力动机正向调节资质过剩感与抗令创新之间的关系且部分中介内在职业目标对两者关系的调节效应。本研究揭示了资质过剩的员工具有抗拒心理和恢复积极自我的强烈动机,也为管理实践中有效发挥员工资质过剩感的积极作用、适度引导员工抗令创新行为提供了启发。