Canadian Forest Service Publications

Mitochondrial DNA variation in somatic embryogenic cultures of Larix. 1994. DeVerno, L.L.; Charest, P.J.; Bonen, L. Theoretical and Applied Genetics 88: 727-732.

Year: 1994

Issued by: National Capital Region

Catalog ID: 10833

Language: English

Availability: PDF (request by e-mail)

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Southern hybridization analysis using wheat mitochondrial gene-specific probes indicates that changes in mitochondrial genomic organization and the relative representation of certain genomic regions occur during in vitro somatic embryogenic cell culture of Larix species. We observed differences in the mitochondrial (mt)DNA hybridization patterns between somatic embryogenic cell cultures and trees grown from seed for Larix leptolepis, L. decidua, and the reciprocal hybrids of these two Larix species. This is the first study to describe the correlation of molecular changes in a gymnosperm mitochondrial genome with in vitro somatic embryogenic cell culture. Quantitative diffenrences in mtDNA hybridization signals were also observed among a 4-year-old somatic embryogenic cell culture of Larix × eurolepis trees regenerated from this culture, and the seed source tree from which the somatic embryogenic cell cultures were initiated.