NDLI: Structures and distribution of p-SINE1 members in rice genomes

Content Provider	Springer Nature Link
Author	Motohashi, R. Mochizuki, K. Ohtsubo, H. Ohtsubo, E.
Copyright Year	1997
Abstract	We determined copy numbers of p-SINE1, a short interspersed element (SINE) in rice, and found that p-SINE1 was distributed in the Oryza sativa genome with an average spacing of about 1 member per 70 kb. We identified 31 p-SINE1 members located at different loci by cloning and characterized them by sequencing. Comparison with a consensus sequence derived from their sequences revealed that all of the p-SINE1 members contained base substitution mutations at various positions. In addition to the substitutions, some members contained deletions, insertions and tandem duplications of a few bases or of a large DNA segment. These mutations seem to have occurred to inhibit transcription from each p-SINE1 member by RNA polymerase III. PCR using a pair of primers that hybridize with the sequences flanking each p-SINE1 member revealed that many of the p-SINE1 members were present at corresponding loci in strains belonging to all rice species carrying the AA genome. Several of them were, however, present at corresponding loci in strains belonging to a limited number of species or in a limited number of the strains belonging to a rice species. These p-SINE1 members are supposed to be useful in the identification and classification of various rice strains with the AA genome. Simple tandem repeats of a trinucleotide (CAT) or dinucleotide (AG) sequence existed in the flanking regions of 2 p-SINE1 members. Such repeats, called microsatellite DNA, varied in number even in the cultivated rice strains examined, suggesting that microsatellite DNA is useful for the identification and classification of cultivars.
Starting Page	359
Ending Page	368
Page Count	10
File Format	PDF
ISSN	00405752
Journal	Theoretical and Applied Genetics
Volume Number	95
Issue Number	3
e-ISSN	14322242
Language	English
Publisher	Springer-Verlag
Publisher Date	1997-08-20
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Biotechnology Agronomy and Crop Science

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