The effect of initial fertilization on subsequent maternal fertility in sequentially fertilized <i>Neurospora crassa</i> (NcC-India) colonies.

One half of a Neurospora crassa (NcC-India) colony was fertilized by a conspecific strain or by N. intermedia from sympatric of allopatric populations (initial fertilization). Five days later, the other half of the colony was fertilized by a conspecific strain (subsequent fertilization). The experiment shows the reproductive success of initial fertilizations and subsequent fertilizations. 1Carib. = Caribbean Basin. 2RSS = Reproductive success score, based on a seven-stage scale where 0 represents no sexual response to fertilization, and 6 represents normal fertility.