Mitochondrial genome diversity in soybean: repeats and rearrangements

C. A. Moeykens, Sally Mackenzie, R. C. Shoemaker

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Mitochondrial (mt) genome organization in soybean was examined at the molecular level. This study builds upon previous reports that four soybean cytoplasmic groups, Bedford, Arksoy, Lincoln, and soja-forage, are differentiated by polymorphisms detected with a 2.3 kb Hind III mtDNA probe [12]. The variation detected results from DNA alterations in a region within and around a 4.8 kb repeat. The Bedford-type cytoplasm is the only cytoplasm that contains copies of a 4.8 kb repeat in four different genomic environments, evidence that it is recombinationally active. The Lincoln- and Arksoy-type cytoplasms each contain two copies of the repeat, as well as unique fragments that appear to result from rare recombination events outside, but near, the repeat. The soja-forage-type cytoplasm contains no complete copies of the repeat, but does contain a unique truncated version of the repeat. Sequence analysis indicates that the truncation is a result of recombination across a 9 bp repeated sequence, CCCCTCCCC. The structural rearrangements that have occurred in the region surrounding the 4.8 kb repeat may provide a means to dissect species relationships and evolution within the subgenus soja.

Original languageEnglish (US)
Pages (from-to)245-254
Number of pages10
JournalPlant Molecular Biology
Volume29
Issue number2
DOIs
StatePublished - Oct 1 1995

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Mitochondrial Genome
Glycine (Fabaceae)
Soybeans
Cytoplasm
cytoplasm
soybeans
Genetic Recombination
forage
Mitochondrial DNA
Sequence Analysis
mitochondrial DNA
sequence analysis
genetic polymorphism
genomics
mitochondrial genome
DNA

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Genetics
  • Plant Science

Cite this

Moeykens, C. A. ; Mackenzie, Sally ; Shoemaker, R. C. / Mitochondrial genome diversity in soybean : repeats and rearrangements. In: Plant Molecular Biology. 1995 ; Vol. 29, No. 2. pp. 245-254.
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Mitochondrial genome diversity in soybean : repeats and rearrangements. / Moeykens, C. A.; Mackenzie, Sally; Shoemaker, R. C.

In: Plant Molecular Biology, Vol. 29, No. 2, 01.10.1995, p. 245-254.

Research output: Contribution to journalArticle

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