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- Title
Genetic analysis of four self-incompatible lines in Brassica napus.
- Authors
Yang, G. S.; Chen, C. B.; Zhou, G. L.; Geng, C. N.; Ma, C. Z.; Tu, J. X.; Fu, T. D.
- Abstract
Reciprocal hybridization between four self-incompatible lines of Brassica napus: 271, 181, 184 and ‘White Flower’, revealed incompatibility. The reciprocal F1s obtained by bud pollination showed self-incompatible reactions, and no segregation for self-incompatibility was observed in all the reciprocal F2 populations, indicating that lines 271, 181, 184 and ‘White Flower’ were genetically identical with regard to self-incompatibility. Observations of self-incompatibility in 17 hybrids from crosses between line 271 and 17 varieties of B. napus showed 10 of the F1 hybrids to be self-compatible, while four were partially self-compatible and three were self-incompatible. Genetic analysis based on F2 and BC1 populations from five self-compatible F1 hybrids and two self-incompatible F1 hybrids suggested the existence of at least two loci controlling the self-incompatibility of line 271: one is the S locus, with dominant and recessive relationships between the S alleles, and the other is the suppressor (sp) of the S locus. The sp locus is genetically different from the S locus, and also shows dominant and recessive relationships between the sp alleles.
- Subjects
RUTABAGA; HUMAN molecular genetics; GENETICS
- Publication
Plant Breeding, 2001, Vol 120, Issue 1, p57
- ISSN
0179-9541
- Publication type
Article
- DOI
10.1046/j.1439-0523.2001.00551.x