学科分类
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3 个结果
  • 简介:在为在韦斯特非洲的绿革命的实现的前提被描述的尼日利亚和迦纳的sawah米饭eco技术的发展和传播。它证明eco技术的疏忽和生物工学的过分的强调从亚洲显示了绿革命过程的无效可转移性到非洲。直到通过bunding和入口和插头连接灌溉和排水的使用的5t/hm2的sawaheco技术增加收益,提高有效的水控制和管理,改进化肥的效率,由土壤微生物和水藻改进氮固定,增加沼泽地的使用,改进土壤有机物累积,压制杂草生长,并且提高通过滋养的供应的大米的有免疫力的机制。当前的经验因此证实了技术克服在韦斯特非洲限制了绿革命的实现的限制。

  • 标签: 生态技术 绿色革命 尼日利亚 非洲 水稻 加纳
  • 简介:EliminationoftheCRISPR/Cas9constructsineditedplantsisaprerequisiteforassessinggeneticstability,conductingphenotypiccharacterization,andapplyingforcommercializationoftheplants.However,removaloftheCRISPR/Cas9transgenesbygeneticsegregationandbybackcrossislaboriousandtimeconsuming.WepreviouslyreportedthedevelopmentofthetransgenekillerCRISPR(TKC)technologythatusesapairofsuicidegenestotriggerself-eliminationofthetransgeneswithoutcompromisinggeneeditingefficiency.TheTKCtechnologyenablesisolationoftransgene-freeCRISPR-editedplantswithinasinglegeneration,greatlyacceleratingcropimprovements.Here,wepresentedtwonewTKCvectorsthatshowgreatefficiencyinbotheditingthetargetgeneandinundergoingself-eliminationofthetransgenes.ThenewvectorsreplacedtheCaMV35SpromoterusedinourpreviousTKCvectorwithtworicepromoterstodriveoneofthesuicidegenes,providingadvantagesoverourpreviousTKCvectorundercertainconditions.Thevectorsreportedhereofferedmoreoptionsandflexibilitytoconductgeneeditingexperimentsinrice.

  • 标签: genome EDITING SUICIDE gene TRANSGENE KILLER
  • 简介:Riceisthestaplefoodofmorethanhalfoftheworld'spopulation.Theproduction,processingandmanagementofpaddyricehaveprovidedthebasicconditionsforthelivingofmankind.Theproductionofricehasnotonlycreatedemploymentopportunitiesforonebillionagriculturalpopulationindevelopingnations,buthasalsocontributedtothedevelopmentofthesplendidcultureassociatedwithriceproduction.Hence,effectiveandproductivericesystemsplayaninfluentialroleindevelopmentofeconomyandimprovementofqualityoflife.Inviewofthis,on16December,2002,theUNGeneralAssemblydeclaredtheyearof2004theInternationalYearofRice.

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