The inheritance of pseudo-self compatibility (PSC) inRaphanus sativusL.

✍ Scribed by M. E. Litzow; P. D. Ascher

• Book ID: 104616854
• Publisher: Springer
• Year: 1983
• Tongue: English
• Weight: 482 KB
• Volume: 32
• Category: Article
• ISSN: 0014-2336
• DOI: 10.1007/bf00036859

✦ Synopsis

Pseudo-self compatibility (PSC) in Raphanus safivus L. is determined by modifying genes that appear to have a threshold effect. Plants that do not possess PSC when used as male or female can produce progeny with increased PSC levels. This suggests that specific combinations and numbers of genes influence PSC. Once high PSC levels are attained, epistatic gene action predominates. Selection of parents for breeding systems using self incompatibility to control fertilization should use progeny testing to determine the best self-incompatible parents.

& TAYLOR (1966) suggested that S alleles low in the dominance series might account for partial or complete self compatibility. This view was supported by LAWSON & WILLIAMS (1976). Modification of the expression of S alleles by an independent polygenic complex was proposed by NASRAL-LAH & WALLACE (1968) while THOMPSON & TAYLOR (1971) found a single dominant gene that was independent of the S locus and modified S expression but acted only t Scientific Journal Series Paper Number 11656 of the Minnesota Agricultural Experiment Station