
收稿日期: 1900-01-01
修回日期: 1900-01-01
网络出版日期: 2010-11-10
Molecular Cloning and Quantitative Expression of a FullLength cDNA Encoding β1Tubulin in the Ovary of Rice Water Weevil, Lissorhoptrus oryzophilus (Coleoptera: Curculionidae)
Received date: 1900-01-01
Revised date: 1900-01-01
Online published: 2010-11-10
于奎峰, 李红亮, 杨璞,崔旭红 ,祝增荣, 商晗武, . 稻水象甲卵巢内β1微管蛋白基因cDNA全长的克隆及定量表达分析[J]. 中国水稻科学, 2010 , 24(6) : 575 -580 . DOI: 10.3969/j.issn.1001-7216.2010.06.003
A fulllength cDNA encoding β1tubulin from the parthenogenetic rice water weevil (RWW), Lissorhoptrus oryzophilus in China and from the sexual RWW in the United States was cloned by RACE and RTPCR, respectively. The full cDNA sequence was 1727 bp for the parthenogenetic RWW, and 1730 bp for the sexual RWW. Both cDNA sequences contained a 1344 bp open reading frame encoding 447 amino acid residues. The putative molecular weight of these amino acid residues was approximately 50 kD at an isoelectric point of 4.54. The cloned β1tubulin amino acids shared a high similarity (95% to 100%) with the βtubulin homologues from other insects. Absolute quantification revealed that the β1tubulin was expressed at a significantly higher level in the ovary of the parthenogenetic RWW (3.14×107 copies/μL±0.66×107 copies/μL) than the sexual RWW (5.08×106copies/μL±0.47×106 copies/μL). It is suggested that the differential expression of β1tubulin in the parthenogenetic RWW may play an important role in the formation of the mitotic spindle.
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