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青花菜Ogu不育胞质分子鉴定和序列分析(PDF)

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2015年02期
页码:
231-235
栏目:
遗传与育种
出版日期:
2015-04-20

文章信息/Info

Title:
Molecular identification of Ogu cytoplasmic male sterile and sequence analysis in broccoli (Brassica oleracea var. italica)
文章编号:
1000-3142(2015)02-0239-05
作者:
荆赞革1 裴徐梨2 唐 征1* 刘 庆1 张小玲1 罗天宽1 朱世杨1
1. 浙南作物育种重点实验室, 温州科技职业学院, 浙江 温州 325006; 2. 作物遗传与种质创新国家重点实验室, 南京农业大学 园艺学院, 南京 210095
Author(s):
JING Zan-Ge1 PEI Xu-Li2 TANG Zheng1* LIU Qing1 ZHANG Xiao-Ling1 LUO Tian-Kuan1 ZHU Shi-Yang1
1. Zhenan Key Laboratory of Crop Breeding, Wenzhou Vocational College of Science and Technology, Wenzhou 325006, China; 2. State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210059, China
关键词:
青花菜 细胞质雄性不育 分子鉴定 序列分析
Keywords:
broccoli CMS molecular identification sequence analysis
分类号:
Q943.1; S65
DOI:
10.11931/guihaia.gxzw201309005
文献标识码:
A
摘要:
雄性不育是农作物利用杂种优势、进行轮回选择和群体改良的重要手段,在农作物生产中具有巨大的利用价值。该研究为了鉴定青花菜细胞质雄性不育材料的不育胞质类型,以期今后为青花菜种质资源的收集、利用及分子标记辅助育种提供新的不育标记。根据GenBank中orf138基因保守序列设计特异引物,对20个青花菜种质资源基因组DNA进行PCR扩增。结果表明:特异引物P1/P2在12个青花菜雄性不育基因型中均扩增出392 bp的片段,在8个可育基因型中未扩增出条带,与田间育性鉴定结果相符。获得青花菜Ogu胞质雄性不育的特异基因orf138序列,GenBank中的登录号为HQ149728; 用Blastn在GenBank中进行同源性比对分析,发现12个不育材料的特异片段与已报道的萝卜Ogu CMS所具有的Ogu orf138基因(Genbank登录号:Z18896.1)同源度高达100%。序列同源比对发现orf138基因存在变异位点。研究结果可为青花菜雄性不育细胞质的分子鉴定、进一步阐明胞质雄性不育败育机理,以及指导青花菜新型不育系的创建和杂种优势高效利用提供理论依据。
Abstract:
Cytoplasmic male sterility(CMS)is an important tool forheterosis utilization,recurrent selection and population improvement in crops,and has great utility value in crop production. In order to identify the cytoplasmic male sterile(CMS)types and obtain the sterility-related sequences in broccoli(Brassica oleracea var. italica),to provide a new Ogu marker and reference for broccoli germplasm collection,utilization and molecular marker assisting selection, specific primers P1/P2 were designed to amplify twenty broccoli germplasm genomic DNA according to the conserved sequences of orf138 gene. A 392 bp specific fragment was detected in twelve infertile broccoli genotypes by PCR amplification,eight fertile genotypes with no band,harmonized with morphology in field. The sequencing and comparison showed the sequence(Genbank accession code:HQ149728)as high as 100% homologous to the reported orf138(Genbank accession code:Z18896.1)in radish. Sequence homology comparison detected orf138 gene contained some variation sites. In this study,the molecular identification of broccoli CMS,was helpful to further elucidate the mechanism of CMS abortion,to guide creation new CMS lines,and to provide a theoretical basis for heterosis efficient utilization.

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备注/Memo

备注/Memo:
收稿日期: 2014-02-16修回日期: 2014-05-09
基金项目: 浙江省自然科学基金(LY12C15009); 浙江省农业新品种选育重大科技专项(2012C12903-3-3); 浙江省重大科技项目(2010C12004); 温州科技局项目(N20090016)。
作者简介: 荆赞革(1983-),男,河南人,硕士,助理研究员,研究方向为蔬菜遗传育种与生物技术,(E-mail)jingzange@aliyun.com。*通讯作者: 唐征,副教授,主要从事蔬菜遗传育种与生物技术,(E-mail)tzeng05@163.com。
更新日期/Last Update: 2015-04-20