cri

 

cri (Crispa)

The crispa mutation is one of the most dramatic there is, on the overall appearance of the plant. Leaves, flowers and pods of plants expressing this gene are crinkled and folded. Peduncles and petioles are shortened, and leaflets are quite narrow and lanceolate, with their sides more or less parallel. As the photo above on the left shows, flowers are often open, allowing for the possibility for outcrossing, and seriously disrupting the typical cleistogamous self pollination of normal peas. This results, predictably, in reduced seed set. This mutation was first found spontaneously in 1949, and has been induced several times since.

This mutation maps to linkage group V, and is specified in 18 accessions in this collection. In 16 of those, the accession is marked as Cri/-, which means that the the accession is mixed at this locus (as opposed to heterozygous at this locus, which would be the conventional use of this symbolism.). Only two accessions are pure crispa. If you would like to query for this mutation, click here.