Production and characterization of a disomic 1M/1D Triticum aestivum-Aegilops comosa substitution line

Disomic 1M (1B) Triticum aestivum–Aegilops comosa Substitution Line with Favorable Protein Properties

“…Probe pTa71 had signals located mainly on the chromosome arms 1MS and 6BS. According to the probe signals of 1M, 1B, and 1D described in a previous investigation and in this study, NAL-35 lost two 1B chromosomes but gained two 1M chromosomes for the pSc119.2 probe signals slightly localized and pTa71 strongly localized on chromosome terminal position.…”

“…aestivum–Ae. comosa substitution line NB 4-8-5-9 showed similar processing quality properties as the weak gluten parents 13 P2-6 and CS ph1b due to the effect of 1M replacing the 1D chromosomes . The HMW-GS encoded by the Glu-D1 on 1D chromosomes has the largest influence on wheat quality among the Glu-A1 , Glu-B1 , and Glu-D1 loci of common wheat .…”

“…NB 4-8-5-9 was derived from BC 2 F 3 generations of a distant hybridization of wheat with Ae. comosa [STM 10 (PI 94668/PI 554419)/CS ph1b //CM 39///13 P2-6] . The chromosome pairing of NAL-35 was observed from plants planted in Wenjiang (WJ) experimental farm in the planting seasons of 2 consecutive years from 2020–2021 to 2021–2022.…”

“…comosa [STM 10 (PI 94668/PI 554419)/CSph1b//CM 39///13 P2-6]. 7 The chromosome pairing of NAL-35 was observed from plants planted in Wenjiang (WJ) experimental farm in the planting seasons of 2 consecutive years from 2020−2021 to 2021−2022. All materials including NAL-35 and its related five hexaploid wheat parents CSph1b, CM 39, 13 P2-6, NB 4-8-5-9, and CS N1BT1D were planted in the field at WJ and Chongzhou (CZ) experimental farms in Sichuan, China, for the planting season of 2021−2022 for the investigation of other traits.…”

“…comosa substitution line NB 4-8-5-9 showed similar processing quality properties as the weak gluten parents 13 P2-6 and CSph1b due to the effect of 1M replacing the 1D chromosomes. 7 The HMW-GS encoded by the Glu-D1 on 1D chromosomes has the largest influence on wheat quality among the Glu-A1, Glu-B1, and Glu-D1 loci of common wheat. 8 In the polyploid Aegilops species containing the M genome, the dough mixing and baking quality of the three substitution lines of 1M g replacing the 1A, 1B, and 1D chromosomes were ranked as follows: 1M g (1D) ≤ 1M g (1B) ≤ 1M g (1A), 9 suggesting that the replacement of 1D was not a good choice for the utilization of the homologous proteins of wheat−alien species for quality improvement.…”