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  • Title: Wheat phylogeny determined by RFLP analysis of nuclear DNA. 3. Intra- and interspecific variations of five Aegilops Sitopsis species.
    Author: Sasanuma T, Miyashita NT, Tsunewaki K.
    Journal: Theor Appl Genet; 1996 Jun; 92(8):928-34. PubMed ID: 24166619.
    Abstract:
    The level of intra- and interspecific variations on nuclear DNA in five Aegilops species of the Sitopsis section were investigated using restriction fragment length polymorphism (RFLP) analysis. A total of 18 accessions, i.e. 7 of Ae. speltoides, 3 of Ae. longissima, 2 of Ae. searsii, 3 of Ae. sharonensis and 3 of Ae. bicornis, were used. One accession each of Triticum aestivum, T. durum, T. urartu and Ae. squarrosa was included as reference material. Five enzymes and 20 probes were used. Among the five Sitopsis species studied, Ae. speltoides had the largest intraspecific variation (π=0.061), which was as high as the interspecific variation observed among the other four species. The section Sitopsis was divided into two distinct groups: one containing only Ae. speltoides and the other, Ae. longissima, Ae. searsii, Ae. sharonensis and Ae. bicornis. This grouping by RFLP analysis is in agreement with the taxonomical classification of the subsections.
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