Sport (botany) Sport (botany) In botany, a sport or bud sport, traditionally called lusus, is a part of a plant that shows morphological differences from the rest of the plant. Sports may differ by foliage shape or color, flowers, or branch structure. Sports with desirable characteristics are often propagated vegetatively to form new cultivars that retain the characteristics of the new morphology. Such selections are often prone to "reversion", meaning that part or all of the plant reverts to its original form. An example of a bud sport is the nectarine, at least some of which developed as a bud sport from
Calyx of Held and processing of the cochlear nucleus. Math1, another transcription factor, is necessary for the appearance of VCN neurons in the cochlear extramural stream as well as the neurons of the superior olivary complex. NB-2 also assists in the advancement of the formation of the calyx of Held, as well as contributing to the upkeep of the contralateral MNTB. The combined effects of these three molecules with one another illustrate the fact that there are many families of proteins involved in proper signaling and formation of the calyx. Additionally, Eph proteins are integral for further auditory circuit system development after initial