@misc{10481/91416, year = {2024}, month = {1}, url = {https://hdl.handle.net/10481/91416}, abstract = {In bread wheat (Triticum aestivum L.), chromosome associations during meiosis are extremely regulated and initiate at the telomeres and subtelomeres, which are enriched in satellite DNA (satDNA). We present the study and characterization of the bread wheat satellitome to shed light on the molecular organization of wheat subtelomeres. Our results revealed that the 2.53% of bread wheat genome is composed by satDNA and subtelomeres are particularly enriched in such DNA sequences. Thirty-four satellite DNA (21 for the first time in this work) have been identified, analyzed and cytogenetically validated. Many of the satDNAs were specifically found at particular subtelomeric chromosome regions revealing the asymmetry in subtelomere organisation among the wheat subgenomes, which might play a role in proper homologous recognition and pairing during meiosis. An integrated physical map of the wheat satellitome was also constructed. To the best of our knowledge, our results show that the combination of both cytogenetics and genome research allowed the first comprehensive analysis of the wheat satellitome, shedding light on the complex wheat genome organization, especially on the polymorphic nature of subtelomeres and their putative implication in chromosome recognition and pairing during meiosis.}, organization = {PID2019-103996RB-I00 grant from the MCIN/AEI/https://doi.org/10.13039/501100011033}, organization = {Qualifica Project QUAL21_023 IAS from Consejería de Transformación Económica, Industria, Conocimiento y Universidades/Cofinanciación and Programa Operativo FEDER de Andalucía 2014-2020}, organization = {Spanish MCIN for PhD PRE2020-094798 grant}, organization = {Biociencias y ciencias agroalimentarias PhD programme from the University of Córdoba}, organization = {Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature.}, publisher = {Springer Nature}, keywords = {Wheat}, keywords = {satDNA}, keywords = {Repetitive DNA}, title = {Bread wheat satellitome: a complex scenario in a huge genome}, doi = {10.1007/s11103-023-01404-x}, author = {Gálvez Galván, Ana and Garrido Ramos, Manuel Ángel and Prieto, Pilar}, }