ISSN:
1573-5060
Keywords:
Crucifers
;
Brassica napus
;
rutabaga
;
Brassica oleracea ssp. capitata
;
cabbage
;
Brassica oleracea var. italica
;
broccoli
;
Plasmodiophora brassicae
;
clubroot disease
;
fungal resistance
;
interspecific hybrids
;
backcrosses
;
resistance breeding
;
karyotype
;
meiosis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary The somatic karyotype and meiotic chromosome behavior were studied in an 18-chromosome B1 plant derived from backcrossing a triploid (Brassica napus x B. oleracea ssp. capitata) F1 hybrid to cabbage. It is considered that cabbage chromosomes no. 1 and no. 7 were substituted by two shorter B. napus chromosomes. Meiotic disturbances were more apparent during the late stages of second division. Seed fertility of this plant was largely restored in the second backcrosses with both cabbage and broccoli. 18-chromosome B2 plants resistant to race 2 of Plasmodiophora brassicae were recovered among the progenies.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00037248
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