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Turning Meiosis into Mitosis
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Journal Article
Turning Meiosis into Mitosis
2009
Overview
Apomixis, or asexual clonal reproduction through seeds, is of immense interest due to its potential application in agriculture. One key element of apomixis is apomeiosis, a deregulation of meiosis that results in a mitotic-like division. We isolated and characterised a novel gene that is directly involved in controlling entry into the second meiotic division. By combining a mutation in this gene with two others that affect key meiotic processes, we created a genotype called MiMe in which meiosis is totally replaced by mitosis. The obtained plants produce functional diploid gametes that are genetically identical to their mother. The creation of the MiMe genotype and apomeiosis phenotype is an important step towards understanding and engineering apomixis.
Publisher
Public Library of Science,Public Library of Science (PLoS)
Subject
/ Analysis
/ Arabidopsis Proteins - chemistry
/ Arabidopsis Proteins - genetics
/ Biotechnology/Plant Biotechnology
/ Cell Biology/Cell Growth and Division
/ Diploidy
/ Genes
/ Genetics
/ Genetics and Genomics/Gene Discovery
/ Genetics and Genomics/Gene Function
/ Genetics and Genomics/Plant Genetics and Gene Expression
/ Meiosis
/ Methods
/ Mitosis
/ Mutation
/ Plants
/ Seeds
