資源描述:
《25個(gè)油棕ssr標(biāo)記的開(kāi)發(fā)及應(yīng)用這些標(biāo)記評(píng)估油棕資源的遺傳多樣性》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。
1、江西農(nóng)業(yè)學(xué)報(bào)2013,25(12):27~31ActaAgricuhuraeJiangxi25個(gè)油棕SSR標(biāo)記的開(kāi)發(fā)及應(yīng)用這些標(biāo)記評(píng)估油棕資源的遺傳多樣性肖勇,楊耀東h,夏薇,沈雁,雷新濤,馬子龍(1.中國(guó)熱帶農(nóng)業(yè)科學(xué)院椰子研究所/海南省熱帶油料作物生物學(xué)重點(diǎn)實(shí)驗(yàn)室,海南文昌571339;2.中國(guó)熱帶農(nóng)業(yè)科學(xué)院熱帶生物技術(shù)研究所,海南???71101)摘要:應(yīng)用NCBI網(wǎng)站上公布的EST序列,挖掘SSR位點(diǎn),并根據(jù)SSR位點(diǎn)的側(cè)翼序列設(shè)計(jì)引物,對(duì)18份油棕資源的DNA進(jìn)行了PCR擴(kuò)增,擴(kuò)增結(jié)果顯示,在72對(duì)引物的
2、PCR擴(kuò)增中,25對(duì)引物具有多態(tài)性特征,并且其雜合度在0.1049和0.6605之間,平均雜合度為0.4702,這暗示了這些標(biāo)記具有中度的多樣性。同時(shí),應(yīng)用這些有多態(tài)性的標(biāo)記評(píng)估了這些油棕資源的遺傳多樣性和群體結(jié)構(gòu),分析結(jié)構(gòu)顯示:椰子研究所油棕資源圃的遺傳多樣性最為豐富,此外,聚類(lèi)分析表明不同位置來(lái)源的油棕資源展現(xiàn)了顯著的遺傳差異。本研究開(kāi)發(fā)的SSR標(biāo)記將能被應(yīng)用到油棕的遺傳育種研究中。關(guān)鍵詞:油棕;SSR;雜合度;遺傳多樣性;群體結(jié)構(gòu)中圖分類(lèi)號(hào):$565.9文獻(xiàn)標(biāo)志碼:A文章編號(hào):1001—8581(2013)
3、12—0027—05Developmentof25SSRMarkersandTheirUsesinEvaluatingGeneticDiversityofOilPalmGermplasmResourcesXIA0Yong,YANGYao—dong,XIAWei,SHENYan,LEIXin—tao,MAZi—long(1.CoconutResearchInstitute,ChineseAcademyofTropicalAgriculturalSciences/HainanProvincialKeyLaborato
4、ryofTrop—icalOilCropsBiology,Wenchang571339,China;2.InstituteofTropicalBioscienceandBiotechnology,ChineseAcademyofTropicalAgriculturalSciences,Haikou571101,China)Abstract:TheresearchminedSSRlociaccordingtoESTsequencespublishedinNCB1website,anddesignedprimersb
5、asedonthesequencesflankingtheseSSRloci.Then,PCRamplificationoftheDNAsfrom18oilpalmgermplasmresourceswasea~iedouttotesttheirdiversity.Theamplificationresultsshowedthat:amongthePCRamplificationwith72pairsofprimers,thatwith25pairsofprimersobtainedpolymorphicband
6、s,andtheirheterozygosityvariedfrom0.1049to0.6605,withtheaverageof0.4702,indicatingthesemarkershadanintermediatelevelofgeneticvariance.Meanwhile,thesepolymorphicSSRmarkerswereusedtoe—valuatethegeneticdiversityandpopulationstructureoftheseoilpalmgermplasmresour
7、ces.TheresultsshowedthattheoilpalmgermplasmresourcesfromCoconutResearchInstitutehadtherichestgeneticdiversity.Clusteringanalysisdemonstratedthattherewasasignificantgeneticdiflerenceamongtheseoilpalmresourcesfromdifferentregions.ThedevelopedSSRmarkersinthisre—
8、searchwillhaveanimmediateapplicationinthegeneticbreedingofoilpalm.Keywords:Oilpalm;SSR;Heterozygosity;Geneticdiversity;Populationstructure油棕是一種木本熱帶油料作物,因產(chǎn)油量高而被代或者兩代人的共同努力。因而如何提高油棕的育種稱(chēng)為“世界