Gifu B-129 was the first one to be established as an experimental strain, collected by Hirayoshi (Kyoto Univ.), named Gifu B-129 by Grant, and self-crossed 9 times by Stougaard. On the other hand,
Kawaguchi has established the accession Miyakojima MG-20 by self-crossing 7 times, the collection from Miyakojima among the Southwest Islands of Japan.
This accession is characterized by the short generation time. Moreover, Lotus burttii B-303 was established as third Lotus experimental strain,
collected and named by Grant and self-crossed 9 times by Kawaguchi.