Esterase isoenzymes as markers for the VA 1 gene of Zea mays and for the B linkage group of Tripsacum dactyloides
Tsanev, V.(Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. D. Kostoff Inst. of Genetics)E-mail:[email protected] | Vladova, R.(Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. D. Kostoff Inst. of Genetics) | Petkolicheva, K.(Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. D. Kostoff Inst. of Genetics) | Kraptchev, B.(Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. D. Kostoff Inst. of Genetics) | Milanov, C.(Bulgarian Academy of Sciences, Sofia (Bulgaria). Acad. D. Kostoff Inst. of Genetics)
We have used the isoenzymes of cathodal esterase to detect markers for the VA 1 gene on 7 S maize chromosome and for the B linkage group of Tripsacum dactyloides which have a regulatory effect on fertility and apomictic mode of reproduction. The gene order in tda 30 - umc 91 zone of Zea mays and in the B linkage group of T. dactyloides is the same and, hence, E1 esterase loci are present in the two gene zones mentioned. On that account the specific to T. dactyloides E1 esterase isoenzymes found in the BC2 hybrids (Rm 0.38, 0.40) may be used as markers for the presence of genetic material from the B linkage group of T. dactyloides.
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