The heterochronic maize mutant Corngrass1 results from overexpression of a tandem microRNA.

doi:10.1038/ng2001

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Article

The heterochronic maize mutant Corngrass1 results from overexpression of a tandem microRNA.

Nature genetics - 1 Apr 2007

Chuck George, Cigan A Mark, Saeteurn Koy, Hake Sarah

Abstract excerpt

Retention of juvenile traits in the adult reproductive phase characterizes a process known as neoteny, and speculation exists over whether it has contributed to the evolution of new species. The dominant Corngrass1 (Cg1) mutant of maize is a neotenic mutation that results in phenotypes that may be present in the grass-like ancestors of maize. We cloned Cg1 and found that it encodes two tandem miR156 genes that...

Topics

Base Sequence
Cloning, Molecular
Evolution, Molecular
MicroRNAs
Molecular Sequence Data
Phenotype
Plant Proteins
Plants, Genetically Modified
Repetitive Sequences, Nucleic Acid
Sequence Homology, Nucleic Acid
Zea mays

Source

Open in PubMed

Identifiers

PMID: 17369828
DOI: 10.1038/ng2001

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