PMID- 16391676 OWN - NLM STAT- MEDLINE DCOM- 20070308 LR - 20220321 IS - 0831-2796 (Print) IS - 0831-2796 (Linking) VI - 48 IP - 6 DP - 2005 Dec TI - Molecular cytogenetic characterization of Aegilops biuncialis and its use for the identification of 5 derived wheat-Aegilops biuncialis disomic addition lines. PG - 1070-82 AB - The aim of the experiments was to produce and identify different Triticum aestivum-Aegilops biuncialis disomic addition lines. To facilitate the exact identification of the Ae. biuncialis chromosomes in these Triticum aestivum-Ae. biuncialis disomic additions, it was necessary to analyze the fluorescence in situ hybridization (FISH) pattern of Ae. biuncialis (2n = 4x = 28, U(b)U(b)M(b)M(b)), comparing it with the diploid progenitors (Aegilops umbellulata, 2n = 2x = 14, UU and Aegilops comosa, 2n = 2x = 14, MM). To identify the Ae. biuncialis chromosomes, FISH was carried out using 2 DNA clones (pSc119.2 and pAs1) on Ae. biuncialis and its 2 diploid progenitor species. Differences in the hybridization patterns of all chromosomes were observed among the 4 Ae. umbellulata accessions, the 4 Ae. comosa accessions, and the 3 Ae. biuncialis accessions analyzed. The hybridization pattern of the M genome was more variable than that of the U genome. Five different wheat-Ae. biuncialis addition lines were produced from the wheat-Ae. biuncialis amphiploids produced earlier in Martonvasar. The 2M, 3M, 7M, 3U, and 5U chromosome pairs were identified with FISH using 3 repetitive DNA clones (pSc119.2, pAs1, and pTa71) in the disomic chromosome additions produced. Genomic in situ hybridization (GISH) was used to differentiate the Ae. biuncialis chromosomes from wheat, but no chromosome rearrangements between wheat and Ae. biuncialis were detected in the addition lines. FAU - Schneider, Annamaria AU - Schneider A AD - Agricultural Research Institute of the Hungarian Academy of Sciences, Martonvasar. FAU - Linc, Gabriella AU - Linc G FAU - Molnar, Istvan AU - Molnar I FAU - Molnar-Lang, Marta AU - Molnar-Lang M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Canada TA - Genome JT - Genome JID - 8704544 SB - IM MH - *Cytogenetic Analysis MH - *Hybridization, Genetic MH - In Situ Hybridization, Fluorescence MH - Poaceae/anatomy & histology/classification/*genetics MH - Triticum/*genetics EDAT- 2006/01/05 09:00 MHDA- 2007/03/09 09:00 CRDT- 2006/01/05 09:00 PHST- 2006/01/05 09:00 [pubmed] PHST- 2007/03/09 09:00 [medline] PHST- 2006/01/05 09:00 [entrez] AID - g05-062 [pii] AID - 10.1139/g05-062 [doi] PST - ppublish SO - Genome. 2005 Dec;48(6):1070-82. doi: 10.1139/g05-062.