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Updated: May 5, 2026

Potato Virus X-Based microRNA Silencing VbMS In Potato.
Published on: May 11, 2020
Cytoplasmic DNA variation in a potato protoclonal population
1Department of Plant Biology, Allelix Inc., 6850 Goreway Drive, L4V 1P1, Mississauga, Ontario, Canada.
Abstract:
Mitochondrial DNA variation was detected in potato plants (protoclones) regenerated from leaf mesophyll protoplasts. Two forms of variation were evident; (1) DNA sequence alterations within the high molecular weight mitochondrial chromosome and (2) the appearance of an additional low molecular weight mitochondrial DNA species. Variation in chloroplast DNA was not detected. The data suggests that protocloning can introduce molecular diversity into mitochondrial genomes and thereby assist in overcoming the cytoplasmic genetic uniformity prevalent in most major crops.
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