Genetic diversity in the Chinese pangolin (Manis pentadactyla): Inferred from restriction enzyme analysis of mitochondrial DNAs

1991 ◽  
Vol 29 (9-10) ◽  
pp. 501-508 ◽  
Author(s):  
Ya-ping Zhang ◽  
Li-ming Shi
Keyword(s):  
Genetic Diversity ◽  
Restriction Enzyme ◽  
Enzyme Analysis ◽  
Restriction Enzyme Analysis ◽  
Mitochondrial Dnas ◽  
Manis Pentadactyla

Long interspersed repeated DNA (LINE) causes polymorphism at the rat insulin 1 locus

1985 ◽  
Vol 5 (9) ◽  
pp. 2197-2203
Author(s):  
M S Lakshmikumaran ◽  
E D'Ambrosio ◽  
L A Laimins ◽  
D T Lin ◽  
A V Furano
Keyword(s):  
Dna Sequence ◽  
Restriction Enzyme ◽  
Allelic Variation ◽  
Enzyme Analysis ◽  
Restriction Enzyme Analysis ◽  
Repeated Dna ◽  
Coding Region ◽  
Sequence Determination ◽  
Polymorphic Region ◽  
Or Gene

The insulin 1, but not the insulin 2, locus is polymorphic (i.e., exhibits allelic variation) in rats. Restriction enzyme analysis and hybridization studies showed that the polymorphic region is 2.2 kilobases upstream of the insulin 1 coding region and is due to the presence or absence of an approximately 2.7-kilobase repeated DNA element. DNA sequence determination showed that this DNA element is a member of a long interspersed repeated DNA family (LINE) that is highly repeated (greater than 50,000 copies) and highly transcribed in the rat. Although the presence or absence of LINE sequences at the insulin 1 locus occurs in both the homozygous and heterozygous states, LINE-containing insulin 1 alleles are more prevalent in the rat population than are alleles without LINEs. Restriction enzyme analysis of the LINE-containing alleles indicated that at least two versions of the LINE sequence may be present at the insulin 1 locus in different rats. Either repeated transposition of LINE sequences or gene conversion between the resident insulin 1 LINE and other sequences in the genome are possible explanations for this.

Restriction Enzyme Analysis (REA) of Group A Streptococcal (GAS) M-Serotypes 1, 3, and 28

1997 ◽  
pp. 221-223 ◽  
Author(s):  
Dwight R. Johnson ◽  
Cheryl L. Romana ◽  
Carey D. Rehder ◽  
Joanne Dehnbostel ◽  
Edward L. Kaplan
Keyword(s):  
Restriction Enzyme ◽  
Enzyme Analysis ◽  
Restriction Enzyme Analysis ◽  
Group A
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