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. 1990 Feb;79(2):177-81.
doi: 10.1007/BF00225948.

Construction of Beta procumbens-specific DNA probes and their application for the screening of B. vulgaris x B. procumbens (2n = 19) addition lines

T Schmidt  1 , H Junghans, M Metzlaff
Affiliations

Construction of Beta procumbens-specific DNA probes and their application for the screening of B. vulgaris x B. procumbens (2n = 19) addition lines

T Schmidt et al. Theor Appl Genet. 1990 Feb.

Abstract

Beta procumbens-specific DNA probes have been constructed by cloning digested total DNA in E. coli and screening the resulting recombinant plasmids in dot blot hybridizations with labelled B. procumbens and B. vulgaris DNA. Four clones (pTS1-4) have been analyzed in detail determining their degree of specificity and DNA sequence. Two clones (pTS1 and pTS2) with the highest degree of B. procumbens specificity were adapted for the squash dot hybridization with the aim of screening large numbers of individual hybrid plants (B. vulgaris x B. procumbens) carrying an alien B. procumbens chromosome (2n = 19). These addition lines carry in some cases B. procumbens resistance genes to the beet cyst nematode (Heterodea schachtii Schm.).

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