TY - JOUR T1 - Molecular Cytogenetic Analysis and Meiotic Pairing Behavior of Progenies Originating from a Hexaploid Triticale (×Triticosecale, Wittmack) and Bread Wheat (Triticum aestivum, L.) Cross. AU - Aliyeva,Aybeniz J, AU - Farkas,András, AU - Aminov,Naib Kh, AU - Kruppa,Klaudia, AU - Molnár-Láng,Márta, AU - Türkösi,Edina, Y1 - 2020/03/14/ PY - 2019/12/04/accepted PY - 2020/3/17/pubmed PY - 2020/4/18/medline PY - 2020/3/16/entrez KW - Ditelosomic addition line KW - FISH KW - GISH KW - Intergeneric hybridization KW - Meiosis KW - Substitution lines KW - Translocation SP - 47 EP - 56 JF - Cytogenetic and genome research JO - Cytogenet Genome Res VL - 160 IS - 1 N2 - The chromosomal constitution of 9 dwarf (D) and 8 semidwarf (SD) lines derived by crossing hexaploid Triticale line NA-75 (AABBRR, 2n = 6x = 42) with Triticumaestivum (AABBDD, 2n = 6x = 42) cv. Chinese Spring was investigated using molecular cytogenetic techniques: fluorescence in situ hybridization and genomic in situ hybridization. A wheat-rye translocation (T4DS.7RL), 8 substitution lines, and a ditelosomic addition line (7RSdt) were identified. In the substitution lines, 1, 2, or 4 pairs of wheat chromosomes, belonging to the A, B, or D genome, were replaced by rye chromosomes. Substitutions between chromosomes belonging to different wheat genomes [5B(5A), 1D(1B)] also occurred. The lines were genetically stable, each carrying 42 chromosomes, except the wheat-rye ditelosomic addition line, which carried 21 pairs of wheat chromosomes and 1 pair of rye telocentric chromosomes (7RS). The chromosome pairing behavior of the lines was studied during metaphase I of meiosis. The chromosome pairing level and the number of ring bivalents were different for each line. Besides rod bivalents, univalent and multivalent associations (tri- and quadrivalents) were also detected. The main goal of the experiment was to develop genetically stable wheat/Triticale recombinant lines carrying chromosomes/chromatin fragments originating from the R genome of Triticale line NA-75. Introgression of rye genes into hexaploid wheat can broaden its genetic diversity, and the newly developed lines can be used in wheat breeding programs. SN - 1424-859X UR - https://www.unboundmedicine.com/medline/citation/32172236/Molecular_Cytogenetic_Analysis_and_Meiotic_Pairing_Behavior_of_Progenies_Originating_from_a_Hexaploid_Triticale__×Triticosecale_Wittmack__and_Bread_Wheat__Triticum_aestivum_L___Cross_ DB - PRIME DP - Unbound Medicine ER -