Abstract
Mitochondrial and nuclear genomic diversities of 8 carrot (Daucus carota ssp. sativus) varieties, including 6 pure lines and 2 cytoplasmic male sterile (cms) lines, were taxonomically identified using PCR with 19 RAPD primers. Dendrograms based on polymorphisms of both mitochondrial and nuclear genomes were constructed. According to the dendrogram of the mitochondrial genome revealed by RAPD, 4 differentiated clusters formed, in good accordance with the classification based on analyses with restriction enzyme digestion. Two cms lines were grouped into the same cluster, as genetically separated from the others. Thus, the cytoplasm donors of these male sterile lines were thought to be wild carrots. Conversely, RAPD analysis of the nuclear genome for these eight cultivars revealed no evident clusters although some cultivars were of a similar origin or place of cultivation. A correlation between nuclear and mitochondrial dendrograms was absent. RAPD has proved to be a useful tool for identifying mitochondrial and nuclear genomes. This technique will greatly aid in promoting efficient improvement of carrots.
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Nakajima, Y., Yamamoto, T. & Oeda, K. Genetic variation of mitochondrial and nuclear genomes in carrots revealed by random amplified polymorphic DNA (RAPD). Euphytica 95, 259–267 (1997). https://doi.org/10.1023/A:1002901112164
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DOI: https://doi.org/10.1023/A:1002901112164