ArticlePlant physiology2000
Specific combinations of zein genes and genetic backgrounds influence the transcription of the heavy-chain zein genes in maize opaque-2 endosperms.
Article in Plant physiology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 21 citations in OpenAlex.
- Genetic and molecular understanding for the development of methionine-rich maize: a holistic approach.Frontiers in plant science · 2023Review
- Uniparental and transgressive expression of α-zeins in maize endosperm of o2 hybrid lines.PloS one · 2018Article
- Article
- Article
- Expressional profiling study revealed unique expressional patterns and dramatic expressional divergence of maize alpha-zein super gene family.Plant molecular biology · 2009Article
- Wild-type opaque2 and defective opaque2 polypeptides form complexes in maize endosperm cells and bind the opaque2-zein target site.Plant physiology · 2007Article
- A new opaque variant of maize by a single dominant RNA-interference-inducing transgene.Genetics · 2003Article
- APO2001: A sexy apomixer in como.The Plant cell · 2001Article
- Methylation of the Opaque2 box in zein genes is parent-dependent and affects O2 DNA binding activity in vitro.Plant molecular biology · 2001Article
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The transcript levels of heavy-chain zein genes (zH1 and zH2) and the occurrence of the zH polypeptides in different opaque-2 (o2) lines were investigated by RNA-blot analyses and by sodium dodecylsulfate-polyacrylamide gel electrophoresis or two-dimensional gel electrophoresis protein fractionations. Four mutant alleles o2R, o2T, o2It, and o2-676 introgressed into different genetic backgrounds (GBs) were considered. The mono-dimensional gel electrophoresis zein pattern can be either conserved or different among the various GBs carrying the same o2 allele. Likewise, in the identical GB carrying different o2 alleles, the zein pattern can be either conserved or differentially affected by the different mutant allele. Zein protein analysis of reciprocal crosses between lines with different o2 alleles or the same o2 showed in some case a more than additive zH pattern in respect to the o2 parent lines. Electrophoretic mobility shift assay approaches, with O2-binding oligonucleotide and endosperm extracts from the above o2 lines, failed to reveal o2-specific retarded band in any of the o2 extracts. The results suggest that the promoter of some zH1 and zH2 contains motif(s) that can respond to factors other than O2.
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