Transitive Interference in Gene Linkage

Nature ◽  
1937 ◽  
Vol 140 (3538) ◽  
pp. 322-323 ◽  
Author(s):  
K. DE KRÖSY
Keyword(s):  
Gene Linkage

Isozymes of amylase, alcohol dehydrogenase, malic enzyme, malate dehydrogenase, and superoxide dismutase in Chloealtis conspersa (Orthoptera)

Genome ◽  
1989 ◽  
Vol 32 (4) ◽  
pp. 596-600 ◽  
Author(s):  
Peter B. Moens ◽  
Steven Kolodziejczyk
Keyword(s):  
Superoxide Dismutase ◽  
Alcohol Dehydrogenase ◽  
Malate Dehydrogenase ◽  
X Chromosome ◽  
Gel Electrophoresis ◽  
Malic Enzyme ◽  
Duplicate Genes ◽  
Gene Linkage ◽  
Slow Band

Five enzymes of the grasshopper Chloealtis conspersa were studied for possible gene linkage. Because of the extreme localization of chiasmata throughout most of the genome of C. conspersa, it was expected that genes would appear either to be completely linked or to assort independently. Our results indicate that malic enzyme and alcohol dehydrogenase are probably on the X chromosome. Superoxide dismutase is produced from the product of duplicate genes where Sod 1-1 is monomorphic and Sod 1-2 has two alleles, one producing a fast-migrating band on gel electrophoresis and one a slow band. While amylase, malate dehydrogenase, and superoxide dismutase appeared to be autosomal, there was no evidence of linkage between them.Key words: Chloealtis conspersa, amylase, alcohol dehydrogenase, malic enzyme, malate dehydrogenase, superoxide dismutase.

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