Multiplicity and Diversity of Cloned Zein CDNA Sequences and Their Chromosomal Localisation
Overview
Molecular Biology
Authors
Affiliations
We have constructed and screened cDNA libraries from total maize endosperm poly(A) RNA or from a mRNA fraction enriched in zein sequences. From these libraries we have isolated clones representative of the major classes of zein cDNA sequences and have characterised them by crosshybridisation, by hybrid-selected translation, by in situ hybridisation to maize chromosomes, and hybridisation to genomic Southern blots. We conclude that at least four types of non cross-hybridising zein sequences are present, two coding for light chains and two for heavy chains. At least in the case of the light zeins, there is considerable sequence diversity among the clones which hybridise to each type. Similar results are obtained by translation of the mRNAs selected by each clone. In situ hybridisation shows that the light chain zein genes are located on chromosomes 4, 7, and 10, whilst genes coding for some of the heavy chain zeins are confined to the distal part of the long arm of chromosome 4.
The Italian Research on the Molecular Characterization of Maize Kernel Development.
Consonni G, Castorina G, Varotto S Int J Mol Sci. 2022; 23(19).
PMID: 36232684 PMC: 9570349. DOI: 10.3390/ijms231911383.
DNA methylation and tissue-specific transcription of the storage protein genes of maize.
Bianchi M, Viotti A Plant Mol Biol. 2013; 11(2):203-14.
PMID: 24272262 DOI: 10.1007/BF00015672.
Distribution and clustering of two highly repeated sequences in the A and B chromosomes of maize.
Viotti A, Privitera E, Sala E, Pogna N Theor Appl Genet. 2013; 70(3):234-9.
PMID: 24252914 DOI: 10.1007/BF00304904.
Molecular analysis of a phytohemagglutinin-defective cultivar of Phaseolus vulgaris L.
Vitale A, Ceriotti A, Bollini R Planta. 2013; 166(2):201-7.
PMID: 24241433 DOI: 10.1007/BF00397349.
Expression of zein in long term cultures of wildtype and opaque-2 maize endosperms.
Manzocchi L, Bianchi M, Viotti A Plant Cell Rep. 2013; 7(8):639-43.
PMID: 24240450 DOI: 10.1007/BF00272049.