1.中国农业科学院果树研究所 / 农业农村部园艺作物种质资源利用重点实验室,辽宁兴城 125100;2.石河子大学农学院/特色果树栽培生理与种质资源利用兵团重点实验室,新疆石河子 832000
研究方向为果树种质资源研究,E-mail: LZ__0427@163.com
王大江,研究方向为苹果种质资源,E-mail: dajiang0101@126.com
中国农业科学院创新工程项目(CAAS-ASTIP-2021-RIP-02)
LIU Zhao
Research Institute of Pomology , Chinese Academy of Agricultural Sciences / Key Laboratory of Horticultural Crops Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs,Liaoning Xingcheng 125100;College of Agriculture, Shihezi University / Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Xinjiang Shihezi 832000LU Xiang
Research Institute of Pomology , Chinese Academy of Agricultural Sciences / Key Laboratory of Horticultural Crops Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs,Liaoning Xingcheng 125100;College of Agriculture, Shihezi University / Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Xinjiang Shihezi 832000LI Qing-shan
Research Institute of Pomology , Chinese Academy of Agricultural Sciences / Key Laboratory of Horticultural Crops Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs,Liaoning Xingcheng 125100;College of Agriculture, Shihezi University / Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Xinjiang Shihezi 8320001.Research Institute of Pomology , Chinese Academy of Agricultural Sciences / Key Laboratory of Horticultural Crops Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs,Liaoning Xingcheng 125100;2.College of Agriculture, Shihezi University / Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Xinjiang Shihezi 832000
Foundation project: The Agricultural Science and Technology Innovation Program of the Chinese Academy of Agricultural Sciences (CAAS-ASTIP-2021-RIP-02)
为了明确不同苹果属资源的SFB基因及在各居群中SFB基因的类型和分布频率,本研究以奎花等栽培苹果及新疆野苹果等野生资源共82份为试验材料,利用3对苹果属SFB基因特异性引物,以叶片DNA为模板进行PCR扩增。特异扩增结果显示:所有试材中均只鉴定出单一的SFB基因片段。经GenBank同源性比较分析,发现这些片段分属5种不同的SFB等位基因,分别为SFB1、SFB2、SFB3、SFB7、SFB9。同时对不同生态种群中SFB基因的分布频率进行了分析,结果表明不同SFB基因出现的频率不同,SFB3出现的频率最高为43.90%,其次为SFB1(39.00%),而相同的SFB基因在不同苹果种间及种内出现的频率亦不同。此外,系统进化树分析显示,新疆野苹果与土库曼苹果及栽培苹果的驯化起源有关。
In order to clarify the SFB gene diversity in Malus Mill. and the distribution frequency of each sequence haplotype in ecological populations, 82 Malus Mill. germplasm resources including the cultivated apples (i.e. Kuihua) and wild resources (i.e. Malus sieversii(Ledeb.) M. Roem.) were used. The genotyping was conducted using three gene-specific primer combinations. PCR amplification using leaf DNA produced a single SFB gene fragment in all materials. Sanger sequencing of PCR products revealed these fragments belonged to five different SFB genes, corresponding SFB1, SFB2, SFB3, SFB7and SFB9 based on GenBank homology comparison. At the same time, the distribution frequency of SFB gene in different ecological population was analyzed. The frequencies of different haplotypes in populations were different, and the highest frequency of SFB3 was 43.90%, followed by SFB1 (39.00%). The intraspecific and interspecific frequency of the same SFB gene was also different. In addition, the phylogenetic tree analysis showed that Malus sieversii (Ledeb.) M. Roem. was related to the domestication and origin of Malus turkmenorumJuz. & M. Pop. and apple cultivars.
刘昭,高源,王昆,等.