简介:Introgressionlines(ILs)derivedfrominterspecificcrossesareasourceofnewgeneticvariability.Atotalof55ILsderivedfromtwocrossesSwarna×O.nivaraIRGC81848(populationA)andSwarna×O.nivaraIRGC81832(populationB)werecharacterizedforyieldandyield-relatedtraits/QTLs.Segregationof103simplesequencerepeat(SSR)markersassociatedwithyield-relatedQTLswasstudied.PopulationAshowedanaverageof12.6%homozygousO.nivaraallelesandpopulationBshowed10.6%.Interestingly,threeSSRmarkers,RM223,RM128andRM517,showedconspicuouspatternofsegregation.ThedistributionofparentalallelesatthreelociRM223,RM128andRM517linkedtoyield-relatedtraitswasunique.Thesemarkersflankedtoseveralyield-relatedQTLs.RM223,flankingtoqyld8.3,washeterozygousinalmostallthe55ILsexceptinIL10-3SandIL131S.RM128onchromosome1andRM517onchromosome3weremutuallyexclusivein46outof55ILs.These46ILsshowedeitherofthemarkeralleleRM128orRM517fromO.nivarabutnotboth.IL166ShadbothRM128andRM517fromO.nivaraandtheotherILsshowedhomozygousSwarnaalleleatRM517exceptIL65S.Populationstructureassignedthe55ILstothreesub-populationsbasedontheirgenomicdiversity.IL65S,IL166S,IL248S,IL7KandIL250Kshowedhighyieldsinmulti-locationtrials,andIL248SwasreleasedforcultivationasDRRDhan40.
简介:为谷物矿物质元素的量的特点loci(QTL)的鉴定能通过帮助标记的繁殖在微量元素的更快、更精确的开发帮助稠密的米饭变化。在现在的学习,QTL在二BC2印射人口的F3源于O的十字。有O的二不同就职的sativacvSwarna。nivara。总共,10和8QTL为谷物Fe被识别,在人口1,和7和5QTL的Zn集中分别地在人口2被识别。在两张人口检测的百分之八十QTL从O被导出。nivara。为Fe的五QTL和为Zn的三QTL也在印射的间隔或合成间隔向超过15%phenotypic解释了变化。O的地点。nivara导出象qFe2.1,qFe3.1,qFe8.2和qZn12.1那样的QTL一致地在两个被识别人口。Epistatic相互作用在人口1在为Fe集中的染色体3上在染色体2上并且在RM22和RM7之间仅仅在RM106和RM6之间被观察。为金属动态平衡的十六候选人基因被发现在两个为Fe和Zn集中与10QTL驻扎在同一地点人口。大多数Fe和ZnQTL被发现为谷物产量和谷物质量特点与QTL驻扎在同一地点。一些识别的主要效果QTL能被用来改进米饭谷物Fe和Zn集中。
简介:1.s were few. The time was barely 10 o'clock at night,applying both quantitative and qualitative methods. The study adopts two corpora. One is O.Henry’s book The Four Million (a collection of stories),for the fact that O.Henry was notable for writing stories with a diversity of expressions. The mean sentence length shows that O.Henry wrote shorter sentences than those in general written texts. In each of his short stories
简介:(2)The frequent noun keywords give a clue to the setting of O.Henry’s short stories. The temporal keywords tell that all but one story happened in the evening and the duration of time was not long. Some accidents even took place in a few hours. The location keywords denote several ordinary places in a city where something accidental might occur with the author’s witty arrangement.,minutes’. Such sequences of numbers and temporal nouns indicate that most of O.Henry’s short stories develop for a short period. Some events took weeks or days to develop,or even on the ‘bench’ in a little ‘park’. In O.Henry’s stories there were no places of imposing scale or unique style. But they were places perfectly matched with the stories of the common people.