Multiple origins of U genome in two UM genome tetraploid Aegilops species, Ae. columnaris and Ae. triaristata, revealed based on the polymorphism of a genome-specific PCR fragment.

Abstract excerpt

To elucidate the evolutionary mode of the formation of species via polyploidization, we conducted phylogenetic analysis of the U genome of the UM genome tetraploid Aegilops species, Ae. columnaris and Ae. triaristata. Using the genome-specific PCR primer set U31, we investigated the variation of the U genome of 48 accessions each of Ae. columnaris and Ae. triaristata and 72 accessions of their diploid ancestor...

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