The mitochondrial genome organization of a maize fertile cmsT revertant line is generated through recombination between two sets of repeats. | Zendy

Christiane M.R. Fauron | Zendy; Marie Havlik | Zendy; R. I. S. Brettell | Zendy

Open Access

The mitochondrial genome organization of a maize fertile cmsT revertant line is generated through recombination between two sets of repeats.

Author(s) -

Christiane M.R. Fauron,

Marie Havlik,

R. I. S. Brettell

Publication year - 1990

Publication title -

genetics.

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.792

H-Index - 246

ISSN - 3049-7094

DOI - 10.1093/genetics/124.2.423

Subject(s) - biology , mitochondrial dna , genetics , genome , gene , chromosome , gene duplication , microbiology and biotechnology , direct repeat

The mitochondrial genome (mtDNA) organization from a fertile revertant line (V3) derived from the maize cytoplasmic male sterile type T (cmsT) callus tissue culture has been determined. We report that the sequence complexity can be mapped on to a circular "master chromosome" of 705 kb which includes a duplication of 165 kb of DNA when compared to its male sterile progenitor. Associated with this event is also a 0.423-kb deletion, which removed the cmsT-associated urf13 gene. As found for the maize normal type (N) and cmsT mitochondrial genomes, the V3 master chromosome also exists as a multipartite structure generated by recombination through repeated sequences.

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