ISSN:
1573-5060
Keywords:
Brassica napus
;
forage rape
;
swedes
;
self-incompatibility
;
S-genes
;
hybrid breeding
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Seed set after self-pollination confirmed that 19 lines of Brassica napus were self-incompatible. Eight lines, H, J, Q, W, X, K, P and Z, were fully cross-compatible. Line R was cross-compatible with these lines but often had a low seed set as female parent. These results are consistent with the activity of nine distinct S-alleles. Line S was cross-incompatible with K, as was V with P, and F with Z. With each of the lines A, E, B, O, G, L and M at least one reciprocal difference was found so that the number of additional distinct S-alleles could not be inferred, but there must be a minimum of seven. Pollen tube counts of intra- and inter-line pollinations using M, B and X confirmed the homozygosity of these lines with respect to self-incompatibility status and the presence of non-reciprocal compatibility between M and B. The results are interpreted in terms of the activity of both B. oleracea and B. campestris S-loci and the implications for hybrid breeding are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00042617
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