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Inheritance of qualitative and quantitative trypsin inhibitor variants inPisum

✍ Scribed by C. Domoney; T. Welham; N. Ellis; R. Hellens

Publisher
Springer
Year
1994
Tongue
English
Weight
838 KB
Volume
89
Category
Article
ISSN
0040-5752

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✦ Synopsis

A trypsin inhibitor locus (Tri) has been mapped close to Vc-2 on Pisum (pea) linkage group 5 using recombinant inbred lines derived from crosses of genotypes showing qualitative variation in seed trypsin inhibitors. F2 seed populations derived from crosses between lines showing qualitative variation in trypsin inhibitors as well as quantitative variation in inhibitor activity showed an association between the segregation of the structural variation and relative activity levels. Clones complementary to Pisum trypsin inhibitor mRNA were used in hybridization analyses which showed that the segregation of protein polymorphisms reflected directly the segregation of polymorphisms associated with the structural genes.

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