INVESTIGATION ON GENETIC DIVERSITY IN (FUSARIUM MONILIFORME) POPULATIONS ISOLATED FROM TWO CORN SEEDS CULTIVARS USING VEGETATIVE COMPATIBILITY GROUPS

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FAROKHI NEZHAD R.

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Journal: THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA) Year:1999 | Volume:22 | Issue:1 Page(s): 0-0

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Title

INVESTIGATION ON GENETIC DIVERSITY IN (FUSARIUM MONILIFORME) POPULATIONS ISOLATED FROM TWO CORN SEEDS CULTIVARS USING VEGETATIVE COMPATIBILITY GROUPS

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FAROKHI NEZHAD R. | Issue Writer Certificate

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Abstract

Three hundred and seventy three isolates of fusarium moniliforme were recovered from two corn seeds from two cultivars both grown at 12 locations in the North Central United States. For these isolates, 2888 nit mutants (1298 nit mutants were from isolates of cultivar 3377, and the rest from isolates of cultivar 3475) were generated using minimal medium containing potassium chlorate. Nit muntants were divided into three phenotypic classes (nitl, nit3, and NitM) based on their growth on the medium containing different nitrogen sources. Of the nit mutants obtained from isolates of cultivar 3377, 25%, 45% and 30%, and of the nit mutants obtained from isolates of cultivar 3475, 18%, 53% and 29% were NitM, nit1 and nit3, respectively. Nit mutants were used to force heterokaryon to determine distribution of vegetative compatibility groups (VCGs) within and between seed lots for corn cultivars 3377 and 3475. Of the 194 VCGs identified, 134 were represented each by a single isolate. These kinds of VCGs comprised 33-87% and 33-88% of the VCGs found in seed lots for cultivars 3377 and 3475, respectively. Of the 91 and 103 VCGs identified for the cultivars 3377 and 3475, respectively 10 and seven VCGs were found at more than one site. At five locations, isolates in a common VCG were recovered from both cultivars. At one location 69% of its isolates belonged to a single VCG, which was the largest VCG identified in this study, but no members of this group were found at any other location. Isolates belonging to this group comprised only 5% within the population as a whole. These data suggest that the population of F. moniliforme are highly localized, and are genetically diverse, and that seed corn movement could provide a mechanism to explain the variability observed in commercial fields.

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APA: Copy

FAROKHI NEZHAD, R.. (1999). INVESTIGATION ON GENETIC DIVERSITY IN (FUSARIUM MONILIFORME) POPULATIONS ISOLATED FROM TWO CORN SEEDS CULTIVARS USING VEGETATIVE COMPATIBILITY GROUPS . THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), 22(1), 0-0. SID. https://sid.ir/paper/407773/en

Vancouver: Copy

FAROKHI NEZHAD R.. INVESTIGATION ON GENETIC DIVERSITY IN (FUSARIUM MONILIFORME) POPULATIONS ISOLATED FROM TWO CORN SEEDS CULTIVARS USING VEGETATIVE COMPATIBILITY GROUPS . THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA)[Internet]. 1999;22(1):0-0. Available from: https://sid.ir/paper/407773/en

IEEE: Copy

R. FAROKHI NEZHAD, “INVESTIGATION ON GENETIC DIVERSITY IN (FUSARIUM MONILIFORME) POPULATIONS ISOLATED FROM TWO CORN SEEDS CULTIVARS USING VEGETATIVE COMPATIBILITY GROUPS ,” THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), vol. 22, no. 1, pp. 0–0, 1999, [Online]. Available: https://sid.ir/paper/407773/en

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