The Number and Distribution of Incompatibility Factors in Schizophyllum
| Autor: | Margery G. Baxter, John R. Raper, Gladys S. Krongelb |
|---|---|
| Rok vydání: | 1958 |
| Předmět: |
biology
business.industry media_common.quotation_subject Schizophyllum commune Distribution (economics) Outcrossing B series Fertility biology.organism_classification Homokaryotic Natural population growth Statistics Botany Schizophyllum business Ecology Evolution Behavior and Systematics media_common |
| Zdroj: | The American Naturalist. 92:221-232 |
| ISSN: | 1537-5323 0003-0147 |
| DOI: | 10.1086/282030 |
| Popis: | A world-wide sample of 114 homokaryotic strains of the tetrapolar mushroom, Schizophyllum commune, was analysed to determine the extent of the "multiple-allelic" series of A and B incompatibility factors. The sample contained 96 distinct and interfertile A factors and 56 different B factors. No evidence was found for non-random geographical distribution or for any departure from numerical equality of specific factors either in the A series or in the B series. Assuming random distribution and equal frequency of factors of both series, these data indicate 339 with 5 per cent limits of 562 and 216 A factors and 64 with 5 per cent limits of 79 and 53 B factors in the natural population. Since sexual fertility between strains depends upon heterozygosity of both A and B factors, the outcrossing efficiency in the natural population is 98.15 per cent. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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