Transfer of the recessive crossability allele kr1 from Chinese Spring into the winter wheat variety Martonvásári 9

Molnár-Láng, Márta; Linc, Gabriella; Sutka, J.

doi:10.1007/bf00027480

Cited by 56 publications

(31 citation statements)

References 15 publications

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“…The crossability alleles were transferred from the cultivar Chinese Spring into cv. Martonvásári 9, so the Martonvásári 9 kr1 (Mv9 kr1) line is frequently used in wide crosses in Martonvásár (Molnár-Láng et al, 1996). Salt stress was induced by increasing the NaCl concentration of the hydroculture medium.…”

Section: Plant Materialsmentioning

confidence: 99%

photosynthesis in the 7H Asakaze komugi/Manas wheat/barley addition line during salt stress

Dulai

Molnár

Haló

et al. 2010

Acta Agronomica Hungarica

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The photosynthetic responses induced by NaCl were investigated in the 7H Asakaze komugi/Manas wheat/barley addition line developed in the Agricultural Research Institute, Martonvásár, Hungary, in the wheat (Triticum aestivum L.) cv. Asakaze komugi (Akom) and wheat line Martonvásári 9 kr1 (Mv9kr1) and in the barley (Hordeum vulgare L.) cv. Manas. An increase in the NaCl concentration of the nutrient solution to 200 mmol L −1 resulted in considerable stomatal closure and a decreased net CO 2 assimilation rate (A) in the wheat genotypes, while the changes in these parameters were less significant for barley and the 7H addition line. Parallel with this, a relatively high non-stomatal limitation (L m ) of A was observed in wheat genotypes, which was not significant in Manas or the wheat-barley addition line at this level of salt stress. At severe stress (300 mM L −1 NaCl concentration) A and stomatal conductance were strongly inhibited in all the genotypes examined; however, L m was less significant in the addition line and its parental wheat genotype. These preliminary results suggest that the 7H Akom/Manas addition line might be a good candidate for improving the salt tolerance of wheat in the future, and encourage further detailed physiological analysis of this addition line.

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Section: Plant Materialsmentioning

confidence: 99%

photosynthesis in the 7H Asakaze komugi/Manas wheat/barley addition line during salt stress

Dulai

Molnár

Haló

et al. 2010

Acta Agronomica Hungarica

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“…Markers closely linked to the crossability loci will help to transfer the recessive crossability allele of kr genes to low crossability variety by backcrosses without observing phenotypes in selfed generations (Molnar-Lang et al 1996). Marker Assisted Selection (MAS) will facilitate the development of Near Isogenic Lines (NILs) of cultivars with high crossability.…”

Section: Discussionmentioning

confidence: 99%

“…Marker Assisted Selection (MAS) will facilitate the development of Near Isogenic Lines (NILs) of cultivars with high crossability. These lines can be utilized to produce new triticales, amphidiploids, and to introduce translocations for the introgression of alien genes for abiotic or biotic stress resistance, improving seed quality and yield from other gene pools (Sharma 1995, Molnar-Lang et al 1996, Lelley 2006.…”

Section: Discussionmentioning

confidence: 99%

Molecular mapping of SKr for crossability in common wheat

et al. 2009

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The crossability of common wheat with alien species, e.g., rye, wild and cultivated barley, is known to be controlled by the Kr gene family. The reproduction barrier caused by Kr genes decreases hybrid seed set; however, the molecular mechanism is still unclear. We attempted to localize the QTLs controlling the crossability of wheat in wheat-rye crosses by using molecular markers on wheat chromosome 5B on which the most effective Kr gene is known to be located. QTL mapping was carried out using the F 7 population derived from a cross between Chinese Spring (high crossability) and a chromosome substitution line of Chinese Spring which has its chromosome 5B of Cheyenne (low crossability), and pollinated with rye cv. Petkus. In this population, a major QTL region controlling crossability with rye was detected on the locus closely linked to a SSR marker, Xgwm443, on the short arm of chromosome 5B which was supposed to be Skr locus.

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“…A more cumbersome but effective method is to test progeny in each generation by crossing to rye, or with the species being used for hybridization, as a tester to confirm that the needed genes have been retained before making another backcross (Molnár-Láng et al, 1996).…”

Section: Developing Hybridsmentioning

confidence: 99%

Breeding Perennial Grain Crops Based on Wheat

Curwen-McAdams

Jones

2017

Crop Science

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Wild relatives offer a diversity of traits potentially useful in crop improvement. Identification of major genes for resistance to biotic and abiotic stresses, in conjunction with targeted introgression, has introduced some of these traits into cultivated varieties. The difficulty of transferring complex traits, and associated linkage drag, has limited the ability of breeding programs to fully use important genetic variation. Wheat (Triticum L.) is an example of an important crop with large secondary and tertiary genepools of species capable of producing viable offspring by cross pollination. Wheat is annual, but most of the related species in the Triticeae Dumort tribe are perennials. An unknown number of genes control the perennial habit, although previous work has shown that it is a complex trait with quantitative expression. Lack of recombination between the parental genomes and complexity of the trait suggest another avenue for breeding: the addition of a genome. Multiple genera can hybridize with wheat, and some combinations produce stable amphiploids. The development of perennial grain and forage crops balancing the agronomics of wheat with the polycarpic habit of its relatives is promising. The approach is similar to Triticale (× Triticosecale Wittmack ex A. Camus), where new crops are developed combining the desirable qualities of the parents. Through prebreeding of the wild relatives, application of insight into meiosis, and strategic use of known genes, it should be more efficient to breed perennial grain crops adapted to diverse production systems.

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Transfer of the recessive crossability allele kr1 from Chinese Spring into the winter wheat variety Martonvásári 9

Cited by 56 publications

References 15 publications

photosynthesis in the 7H Asakaze komugi/Manas wheat/barley addition line during salt stress

photosynthesis in the 7H Asakaze komugi/Manas wheat/barley addition line during salt stress

Molecular mapping of SKr for crossability in common wheat

Breeding Perennial Grain Crops Based on Wheat

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