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Title: Genome size variation in Chenopodium quinoa (Chenopodiaceae)
Authors: Kolano, Bożena
Siwińska, Dorota
Gomez Pando, Luz
Szymanowska-Pułka, Joanna
Małuszyńska, Jolanta
Keywords: Chenopodium quinoa; Flow cytometry; Genome size; Intraspecific variation
Issue Date: 2012
Citation: Plant Systematics and Evolution, Vol. 298 (2012), s. 251-255
Abstract: The extent and significance of intraspecific genome size variation were analysed in quinoa (Chenopodium quinoa Willd.), a pseudocereal important for human consumption in the Andean region of South America. Flow cytometry, with propidium iodide as the DNA stain, was used to estimate the genome size of 20 quinoa accessions from Ecuador, Peru, Bolivia, Argentina, Chile and the USA. Limited genome size variation was found among the analysed accessions. The differences between the accessions were statistically significant but the maximum inter-accession difference between the populations with the largest and the smallest genome reached only 5.9%. The largest genome was found in population C4 from Chile (mean 3.077 pg/2C) and the smallest in the Peruvian population P2 (mean 2.905 pg/2C). The variation was not correlated with collection site; however, the quinoa accessions analysed in this study belonged to three distinct geographical groups: northern highland, southern highland and lowland.
DOI: 10.1007/s00606-011-0534-z
ISSN: 0378-2697
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