Nucleotide sequence analysis of a novel globulin1 null allele from the Illinois high protein strain of maize |
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Authors: | Dinakar Bhattramakki Alan L Kriz |
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Affiliation: | (1) Department of Agronomy, University of Illinois, 61801 Urbana, Illinois, USA;(2) School of Biological Sciences, University of Nebraska-Lincoln, 68588-0118 Lincoln, NE, USA;(3) Center for Biotechnology, University of Nebraska-Lincoln, 68588-0118 Lincoln, NE, USA;(4) DEKALB Genetics Corporation, 62 Maritime Drive, 06335-1958 Mystic, CT, USA |
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Abstract: | The highly polymorphic maize globulin1 (glbl) gene encodes an abundant embryo storage protein. The present study extends the analysis of glbl variants to further explore the nature of polymorphism at this locus. The null allele Glb1-N1Hb, derived from the Illinois High Protein (IHP) strain of maize was characterized at the molecular level by nucleotide sequence analysis. Among other differences, a single-base insertion leading to a premature termination codon in the carboxyl-terminal half of the otherwise normal protein was observed. The likely reasons for the absence of GLB1 protein accumulation in the IHP strain of maize are discussed. |
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Keywords: | globulin null allele polymorphism Zea mays L. |
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