This trait was found in one of the virus-derived-mottled cultures. The crowns of the affected seeds rarely collapse. Most of the reduction affects the sides of the seeds. Classification is reasonably accurate. The gene is located on chromosome 5. The backcross data involving Pr are as follows: Pr Sh 977, Pr sh 255, pr Sh 301, pr sh 1021. sh4 has been reported on chromosome 5 but tests for allelism were negative. The symbol sh5 is suggested.
Return to the MNL 61 On-Line Index
Return to the Maize Newsletter Index
Return to the Maize Genome Database Page