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园艺学报 ›› 2009, Vol. 36 ›› Issue (3): 333-340.

• 果树 • 上一篇    下一篇

新疆野生樱桃李S-RNase基因分离与鉴定的初步研究

刘崇琪1,2;陈晓流1;张艳敏1;林 群1;王金政2;张 红1;张春雨1;陈学森1*   

  1. 1作物生物学国家重点实验室,山东农业大学,山东泰安 271018;2山东省果树研究所,山东泰安271000)
  • 收稿日期:2008-11-18 修回日期:2009-02-18 出版日期:2009-03-25 发布日期:2009-03-25
  • 通讯作者: 陈学森

Primary Study on Identification of S-RNase Genes in Wild Myrobalan Plum (Prunus cerasifera Ehrh.)

LIU Chong-qi1,CHEN Xiao-liu1,ZHANG Yan-min1,LIN Qun1, WANG Jin-zheng2, ZHANG hong1, ZHANG Chun-yu1,and CHEN Xue-sen1
  

  1. 1State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai'an Shandong271018, China;2Shandong Institute of Pomology, Tai'an 271000, China)
  • Received:2008-11-18 Revised:2009-02-18 Online:2009-03-25 Published:2009-03-25
  • Contact: CHEN Xue-sen

摘要: 从4对已报道的李属树种S-RNase基因引物组合中筛选出扩增效果较好的PruC2和PruC4R组合,首次对新疆野生樱桃李(Prunus cerasifera Ehrh.)的45个株系的基因组DNA进行S-RNase基因特异性PCR扩增,并对其PCR产物进行克隆测序。这些核酸序列及其相应的氨基酸序列在GenBank中进行比对, 皆与李属的S-RNase基因有最大同源性,为新疆野生樱桃李的4种S-RNase基因,分别命名为S1 (511 bp),S2 (787 bp),S3 (1859 bp)和S4 (464 bp),在GenBank的登录号分别为EF638726、EF641276、EF661873和EF661874。45个株系中,43个株系的S基因型分别为S1S2S1S3S2S3S2S4S3S4,而10号和15号株系分别只鉴定了一种S-RNase基因,其S基因型组成有待于进一步研究。

关键词: 樱桃李(Prunus cerasifera Ehrh.), 自交不亲和性, S-RNase基因, S 基因型

Abstract: On fourty-five strains of wild myrobalan plum, the PCR amplification was carried out with the primer pair PruC2/PruC4R designed according to the conserved sequence of amino acid of Prunus S-RNase. The PCR bands were cloned and sequenced. The sequences were blasted in GenBank which showed them having the maximum identity with Prunus S-Rnases, and four S-RNase alleles were identified and named as S1 (511 bp), S2(787 bp), S3(1,859 bp) and S4(464 bp) alleles respectively, their accession numbers in GenBank are EF638726, EF641276, EF661873 and EF661874 . The S-genotypes of 43 strains were S1S2, S1S3, S2S3, S2S4 and S3S4. However, only one S-RNase allele was identified as S3-RNase on strain 10 and S4-RNase on strain 15, the S-genotypes of strain 10 and 15 remain to be further studied.

Key words: Wild myrobalan plum(Prunus cerasifera Ehrh.), Self-incompatibility, S-RNase, S-genotype

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