GENOMIC CLONES ENCODING 11S GLOBULINS IN OATS (AVENA-SATIVA L)

被引:12
作者
TANCHAK, MA [1 ]
GIBAND, M [1 ]
POTIER, B [1 ]
SCHERNTHANER, JP [1 ]
DUKIANDJIEV, S [1 ]
ALTOSAAR, I [1 ]
FEDAK, G [1 ]
机构
[1] UNIV OTTAWA,DEPT BIOCHEM,OTTAWA,ON K1N 9B4,CANADA
关键词
AVENA SATIVA; GENE STRUCTURE; GLOBULIN; LEGUMIN;
D O I
10.1139/g95-080
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 [微生物学]; 0836 [生物工程]; 090102 [作物遗传育种]; 100705 [微生物与生化药学];
摘要
We have isolated two complete genomic clones, Glav1 and Glav3, encoding 11S globulins (legumins) in oat. The structure of Glav1 deviates from that of the typical legumin gene. This clone possesses an extra intron and an extra exon that is composed entirely of repeats of sequences found elsewhere in the clone. If this exon is functional, the protein encoded by Glav1 will contain novel octapeptide and hendecapeptide repeats. The two Glav clones show stronger and more extensive homology with one another than with the two previously published genomic clones, OG1-E1 and ASglob5. This result suggests that the oat globulin gene family may be divided into distinct subfamilies or that there may be significant cultivar-specific differences among members of this gene family.
引用
收藏
页码:627 / 634
页数:8
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