ISSN:
1432-2242
Schlagwort(e):
Key words Erucastrum abyssinicum
;
Brassica spp
;
Intergeneric hybrids
;
Bridge crosses
;
Amphiploidy
;
Stress resistance
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
Notizen:
Abstract Three intergeneric hybrids were produced between a cold-tolerant wild species, Erucastrum abyssinicum and three cultivated species of Brassica, B. juncea, B. carinata and B. oleracea, through ovary culture. The hybrids were characterized by morphology, cytology and DNA analysis. Amphiploidy was induced in all the hybrids through colchicine treatment. Stable amphiploids and backcross progenies were obtained from two of the crosses, E. abyssinicum B. juncea and E. abyssinicum B. carinata. The amphiploid, E. abyssinicum B. juncea, was successfully used as a bridge species to produce hybrids with B. napus, B. campestris and B. nigra. These hybrids and backcross progenies provide useful genetic variability for the improvement of crop brassicas.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/s001220050193
