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Diversified Chromosome Rearrangements Detected in a Wheat‒Dasypyrum breviaristatum Substitution Line Induced by Gamma-Ray Irradiation

Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China
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Plants 2019, 8(6), 175; https://doi.org/10.3390/plants8060175
Received: 19 May 2019 / Revised: 9 June 2019 / Accepted: 13 June 2019 / Published: 14 June 2019
To determine the composition of chromosome aberrations in a wheat‒Dasypyrum breviaristatum substitution line with seeds treated by a dose of gamma-rays (200 Gy), sequential non-denaturing fluorescence in situ hybridization (ND-FISH) with multiple oligonucleotide probes was used to screen individual plants of the mutagenized progenies. We identified 122 types of chromosome rearrangements, including centromeric, telomeric, and intercalary chromosome translocations from a total of 772 M1 and 872 M2 plants. The frequency of reciprocal translocations between B- and D-chromosomes was higher than that between A- and D-chromosomes. Eight translocations between D. breviaristatum and wheat chromosomes were also detected. The 13 stable plants with multiple chromosome translocations displayed novel agronomic traits. The newly developed materials will enhance wheat breeding programs through wheat‒Dasypyrum introgression and also facilitate future studies on the genetic and epigenetic effects of translocations in wheat genomics. View Full-Text
Keywords: chromosome rearrangement; fluorescence in situ hybridization; gamma ray radiation; wheat‒Dasypyrum substitution chromosome rearrangement; fluorescence in situ hybridization; gamma ray radiation; wheat‒Dasypyrum substitution
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MDPI and ACS Style

Wang, H.; Yu, Z.; Li, G.; Yang, Z. Diversified Chromosome Rearrangements Detected in a Wheat‒Dasypyrum breviaristatum Substitution Line Induced by Gamma-Ray Irradiation. Plants 2019, 8, 175. https://doi.org/10.3390/plants8060175

AMA Style

Wang H, Yu Z, Li G, Yang Z. Diversified Chromosome Rearrangements Detected in a Wheat‒Dasypyrum breviaristatum Substitution Line Induced by Gamma-Ray Irradiation. Plants. 2019; 8(6):175. https://doi.org/10.3390/plants8060175

Chicago/Turabian Style

Wang, Hongjin, Zhihui Yu, Guangrong Li, and Zujun Yang. 2019. "Diversified Chromosome Rearrangements Detected in a Wheat‒Dasypyrum breviaristatum Substitution Line Induced by Gamma-Ray Irradiation" Plants 8, no. 6: 175. https://doi.org/10.3390/plants8060175

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