Chromosome composition of wheat-rye lines and the influence of rye chromosomes on disease resistance and agronomic traits

Chumanova, E. V.; Ефремова, Т. Т.; Трубачеева, Н. В.; Арбузова, В. С.; Россеева, Л. П.

doi:10.1134/s1022795414110039

Cited by 9 publications

(2 citation statements)

References 37 publications

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“…The exploitation of the genetic potential of rye ( Secale cereale L.) in the breeding of bread wheat is one of the reliable and effective ways of its improvement. The 1RS.1BL wheat-rye translocation has been widely used in the development of commercial varieties of bread wheat worldwide [ 1 , 2 , 3 , 4 , 5 , 6 ]. On the website developed by R. Schlegel, 1034 wheat accessions with 1RS.1BL translocation are listed [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Permanent Spreading of 1RS.1AL and 1RS.1BL Translocations in Modern Wheat Breeding

Korobkova

Bespalova

Yanovsky

et al. 2023

Plants

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Wheat-rye translocations 1RS.1BL and 1RS.1AL are used in bread wheat breeding worldwide because a short arm of rye chromosome 1 (1RS) when introgressed into the wheat genome confers resistance to diseases, pests and better performance under drought-stress conditions. However, in durum wheat genotypes, these translocations occur only in experimental lines, although their advantages could enhance the potential of this crop. P.P. Lukyanenko National Grain Centre (NGC) has successfully developed commercially competitive cultivars of bread and durum wheat demanded by many agricultural producers in the South of Russia for decades. Here, 94 accessions of bread and 343 accessions of durum wheat, representing lines and cultivars from collection, competitive variety trials and breeding nursery developed at NGC were screened for 1RS using PCR markers and genomic in situ hybridization. The 1RS.1BL and 1RS.1AL translocations were detected in 38 and 6 bread wheat accessions, respectively. None of the durum wheat accessions showed translocation, despite the fact that some of them had 1RS.1BL donors in their pedigree. The absence of translocations in the studied durum wheat germplasm can be caused by the negative selection of 1RS carriers at different stages of the breeding process due to low quality and difficulties in transferring rye chromatin through wheat gametes.

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Section: Introductionmentioning

confidence: 99%

Permanent Spreading of 1RS.1AL and 1RS.1BL Translocations in Modern Wheat Breeding

Korobkova

Bespalova

Yanovsky

et al. 2023

Plants

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“…Both alien chromosome addition and substitution dissect an alien genome into individual chromosomes in the wheat genetic background. They have been commonly used to investigate the effect of specific alien chromosomes on various agronomic traits in wheat (Bai and Kbitt, 1992; Watanabe et al, 1994; Law and Worland, 1996; Stack et al, 2002; Zhou et al, 2002a; Faris et al, 2008; Chumanova et al, 2014; Du et al, 2014). For instance, durum wheat LDN‐CS D‐genome substitution lines (DSLs) have one pair of LDN A‐ or B‐genome chromosomes substituted by one pair of CS homoeologous D‐genome chromosomes.…”

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confidence: 99%

Effects of D‐Genome Chromosomes and Their A/B‐Genome Homoeologs on Fusarium Head Blight Resistance in Durum Wheat

2016

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This study aimed to elucidate the effect of D‐genome chromosomes and their homoeologs in A and B genome on Fusarium head blight (FHB) resistance in durum wheat. Evaluation of the ‘Langdon’ (LDN) durum‐'Chinese Spring’ (CS) D‐genome disomic substitution lines for reaction to FHB indicated that chromosome 5A could affect resistance to FHB by generating variation in the 5AQ gene‐controlled spike structure. Also, we found that CS chromosome 6D might contain genes for FHB susceptibility and/or suppression of FHB resistance. Langdon chromosomes 2B and possibly 6A and 6B may contain the genes that enhance FHB resistance. In addition, we added the entire D genome of Aegilops tauschii Coss. RL5286 (2n = 2x = 14, DD) to LDN by producing LDN‐RL5286 amphiploid (2n = 6x = 42, AABBDD) and dissected the A. tauschii D genome in LDN background by producing LDN‐A. tauschii D genome addition lines. The A. tauschii chromosomes 1D and 5D were found to carry the genes that conditioned FHB resistance when they were individually or concurrently added to LDN. The genes for FHB resistance on these two chromosomes seemed to act additively in LDN. The other A. tauschii chromosomes (i.e., 2D, 3D, 4D, 6D, and possibly 7D) might contain the genes that downregulated or suppressed the FHB resistance‐related genes on chromosome 1D or 5D. Apparently, there are complex interactions among the genes on the A. tauschii chromosomes, as well as A‐ and B‐genome chromosomes, for FHB resistance in the durum background. Proper manipulation of the critical chromosomes may lead to the improvement of FHB resistance in durum wheat.

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Genetics and Genomics of Stress Tolerance

Rakoczy-Trojanowska

Bolibok-Brągoszewska

Myśków

et al. 2021

Compendium of Plant Genomes

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Chromosome composition of wheat-rye lines and the influence of rye chromosomes on disease resistance and agronomic traits

Cited by 9 publications

References 37 publications

Permanent Spreading of 1RS.1AL and 1RS.1BL Translocations in Modern Wheat Breeding

Permanent Spreading of 1RS.1AL and 1RS.1BL Translocations in Modern Wheat Breeding

Effects of D‐Genome Chromosomes and Their A/B‐Genome Homoeologs on Fusarium Head Blight Resistance in Durum Wheat

Genetics and Genomics of Stress Tolerance

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