GENETIC DIVERSITY OF SYNTHETIC ALFALFA GENERATIONS AND CULTIVARS USING TETRASOMIC INHERITED ALLOZYME MARKERS

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VALIZADEH M.; MOHAYEJI M.; YASINZADEH N.; NASRULLAZADEH S.; MOGHADDAM M.

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Journal: JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST) Year:2011 | Volume:13 | Issue:3 Page(s): 425-430

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Title

GENETIC DIVERSITY OF SYNTHETIC ALFALFA GENERATIONS AND CULTIVARS USING TETRASOMIC INHERITED ALLOZYME MARKERS

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Keywords

ALFALFAQ3

ALLOZYMESQ3

GENETIC DIVERSITYQ3

TETRASOMIC INHERITANCEQ3

Abstract

Enzyme electrophoresis was used to measure genetic variation within, and divergence among, three generations of recently bred synthetic ALFALFA generations (Syn1, Syn2, and Syn3) originating from a polycross of 12 selected parents and several cultivars. Three isozyme loci, exhibiting TETRASOMIC INHERITANCE in 10-day seedlings, were detected from five enzymatic systems analyzed by polyacrylamide slab gel electrophoresis for about 100 individuals of each ALFALFA population. Very high levels of heterozygosity (ranging from 0.521 to 0.699) were observed within ALFALFA populations, using polymorphic loci. The reduction in heterozygosity was about 5% from Syn1 to Syn2 and from Syn2 to Syn3. The last open pollinated generation was found to be in W-H equilibrium as well as Gharayonja, a native ecotype under examination, using X2-test. Application of Wright's Fstatistics revealed that the estimated overall inbreeding coefficient, (FIT), of 9.4% was mainly related to inbreeding or double reduction in ALFALFA (FIS=8.61%) rather than random genetic drift or population differentiation (FST=1.6%). Therefore, due to very large intra-population diversity, the breeding program of the synthetic ALFALFA did not generate a large variety differentiation. However, the use of seedling allozymic loci can be applied successfully for estimation of the population genetic parameters.

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APA: Copy

VALIZADEH, M., MOHAYEJI, M., YASINZADEH, N., NASRULLAZADEH, S., & MOGHADDAM, M.. (2011). GENETIC DIVERSITY OF SYNTHETIC ALFALFA GENERATIONS AND CULTIVARS USING TETRASOMIC INHERITED ALLOZYME MARKERS. JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST), 13(3), 425-430. SID. https://sid.ir/paper/62868/en

Vancouver: Copy

VALIZADEH M., MOHAYEJI M., YASINZADEH N., NASRULLAZADEH S., MOGHADDAM M.. GENETIC DIVERSITY OF SYNTHETIC ALFALFA GENERATIONS AND CULTIVARS USING TETRASOMIC INHERITED ALLOZYME MARKERS. JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST)[Internet]. 2011;13(3):425-430. Available from: https://sid.ir/paper/62868/en

IEEE: Copy

M. VALIZADEH, M. MOHAYEJI, N. YASINZADEH, S. NASRULLAZADEH, and M. MOGHADDAM, “GENETIC DIVERSITY OF SYNTHETIC ALFALFA GENERATIONS AND CULTIVARS USING TETRASOMIC INHERITED ALLOZYME MARKERS,” JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST), vol. 13, no. 3, pp. 425–430, 2011, [Online]. Available: https://sid.ir/paper/62868/en

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