Self-incompatibility in passion fruit: evidence of two locus genetic control

• Published in: Theoretical and applied genetics Vol. 98; no. 3/4; pp. 564 - 568
• Main Authors: Rego, M.M. do, Bruckner, C.H, Silva, E.A.M. da, Finger, F.L, Siqueira, D.L. de, Fernandes, A.A
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.03.1999; Berlin Springer Nature B.V
• Subjects: backcrossing; Biological and medical sciences; bud selfing; Classical genetics, quantitative genetics, hybrids; compatibility; crossing; fruit set; Fruits; Fundamental and applied biological sciences. Psychology; Genetic aspects; Genetics of eukaryotes. Biological and molecular evolution; Genotype & phenotype; Hypotheses; inheritance (genetics); loci; Passiflora edulis; Passion fruit; phenotype; Plant genetics; Plant reproduction; Plants; Pteridophyta, spermatophyta; reciprocal crosses; Self-incompatibility; self-pollination; selfing; sib crossing; Vegetals; Brazil; Selfincompatibility; Passifloraceae; Gene; Fruit crop; Dicotyledones; Angiospermae; Spermatophyta; Passiflora edulis; Inheritance(genetics); Sexual reproduction; Genetic determinism
• ISSN: 0040-5752; 1432-2242
• DOI: 10.1007/s001220051105

The self-incompatibility in yellow passion fruit was previously described as homomorphic sporophytic with monofactorial inheritance. Five progenies were obtained by bud-selfing. The plants of these progenies were selfed, reciprocally crossed within each progeny and crossed with known incompatible phenotypes to identify their phenotypic group. Fruit set was evaluated at the 7th day after pollination. Two progenies consisted of two self-incompatible groups, the other three formed three suck groups. The groups were identified as S1, S2, S3, S4, S5 and S6. The results provide evidence that the self-incompatibility of passion fruit is controlled by two loci, the S-gene and another, whose expression needs to be investigated.