ISSN:
1617-4623
Keywords:
Biotin-labelled DNA
;
In situ hybridization
;
Meiosis
;
Interphase
;
Wild germplasm
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary The objectives of this study were to determine if biotin-labelled total genomic DNA of rye (Secale cereale L.) could be used to (i) preferentially label rye meiotic chromosomes in triticale and (ii) detect translocation stocks at interphase and/or early prophase by in situ hybridization. Welsh triticale, a wheat-rye segmental amphiploid, and Kavkaz wheat, a wheat-rye translocation were used. The results indicated that labelled chromosomes of rye and unlabelled chromosomes of wheat could be observed throughout all meiotic stages in the triticale. For Kavkaz wheat, the presence of the translocated 1RS chromosome arm of rye was detected at the interphase or very early prophase stage. Rapid assessment of feasibility of gene transfers and detection of alien DNA in somatic cells at the interphase stage by in situ hybridization allows for rapid decision-making and saves time and expense in plant breeding programs.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00282639
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