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Numbers of sporophytic self-incompatibility alleles in populations of wild radish

✍ Scribed by J. D. Karron; D. L. Marshall; D. M. Oliveras

Publisher
Springer
Year
1990
Tongue
English
Weight
357 KB
Volume
79
Category
Article
ISSN
0040-5752

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✦ Synopsis

To estimate the numbers of sporophytic S-alleles in two adjacent populations of wild radish, we performed 701 reciprocal crosses among 50 individuals. Each cross was replicated five times in each direction. Sixteen plants were fully intercompatible, indicating the presence of at least 32 S-alleles in the two populations. A minimum of 22 S-alleles occur in a single population. The frequency of incompatibility was significantly higher for within-population crosses (14.5%) than for between-population crosses (7.8%). This suggests that the two populations differ in the composition and frequency of alleles at the S-locus.

πŸ“œ SIMILAR VOLUMES

Sporophytic recognition of pollen S alle
Sporophytic recognition of pollen S alleles in the gametophytic self-incompatibility system ofNemesia strumosabenth
✍ R. J. Henny; P. D. Ascher πŸ“‚ Article πŸ“… 1977 πŸ› Springer 🌐 English βš– 379 KB

Several seedlings of Nemesia strumosa with various levels of pseudo-self-compatibility (PSC) often produced more seed after self pollination than when pollinated using pollen from incompatible plants bearing the same S alleles. Sporophytic recognition of self pollen apparently increases PSC levels a