%0 Journal Article
%T CombiningAbilityandHeteroticPerformanceofBt£¿£¿TransgenicLinesinCotton(GossypiumhirsutumL.)
%A GUOXiao-ping
%A ZHAOYuan-ming
%A WUJia-he
%A ZHANGXian-long
%A NIEYi-chun
%J ÃÞ»¨Ñ§±¨
%P 1-5
%D 2008
%R 1002-7807(2006)05-0304-05
%X Fivetransgeniclinesofcotton(GossypiumhirsutumL.)carryingthecry1Ac(Bt£¬Bacillusthuringiensis)geneweredevelopedfromacultivarJH321byindependenttransformationevents.FifteenF1hybridswereobtainedfromdiallelcrossesamongthefivetransgeniclinesandJH321.WhencomparedwiththetransformationreceptorcultivarJH321,significantvariationsinagronomictraitsincludingimprovedyieldoryieldcomponentswerefoundamongthesetransgeniclines.Generalcombiningabilities(GCA)amongthesetransgeniclinesvariedgreatly,andtwooftheselineswithsignificantpositiveGCAeffectswereidentified.HeterosisinF1hybridsalsoexhibitedsignificantvariations.Itwasfoundthattheaverageheterosisofcrosseswithtwotransgeniclineswaslowerthanthatwithonlyonetransgeniclineasparentinyieldperformance.TheeconomictraitimprovementfortransgeniclinesandtheheterosisproducedbetweentransgeniclineandreceptorcultivarmightberaisedfromdifferentintegrationsitesofBtgene.
%K uplandcotton
%K combiningability
%K transgeniclines
%K Btgenes
%U http://journal.cricaas.com.cn:8083/Jweb_mhxb/CN/Y2008/V20/ISelection/1