Genotyping-by-sequencing uncovers a Thinopyrum 4StS·1JvsS Robertsonian translocation linked to multiple stress tolerances in bread wheat
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F25%3A00605397" target="_blank" >RIV/61389030:_____/25:00605397 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s00122-024-04791-x" target="_blank" >https://doi.org/10.1007/s00122-024-04791-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00122-024-04791-x" target="_blank" >10.1007/s00122-024-04791-x</a>
Alternative languages
Result language
angličtina
Original language name
Genotyping-by-sequencing uncovers a Thinopyrum 4StS·1JvsS Robertsonian translocation linked to multiple stress tolerances in bread wheat
Original language description
Agropyron glael (GLAEL), a Thinopyrum intermedium x Th. ponticum hybrid, serves as a valuable genetic resource for wheat improvement. Despite its potential, limited knowledge of its chromosome structure and homoeologous relationships with hexaploid wheat (Triticum aestivum) has restricted the full exploitation of GLAEL's genetic diversity in breeding programs. Here, we present the development of a 44-chromosome wheat/GLAEL addition line (GLA7). Multicolor genomic in situ hybridization identified one chromosome arm from the St subgenome of Th. intermedium, while the other arm remained unclassified. Genotyping-by-sequencing (GBS) read coverage analysis revealed a unique Robertsonian translocation between two distinct Thinopyrum subgenomes, identified as 4StS<middle dot>1JvsS. The GLA7 line demonstrated strong adult plant resistance to both leaf rust and stripe rust under natural and artificial infection conditions. Automated phenotyping of shoot morphological parameters together with leaf relative water content and yield components showed that the GLA7 line exhibited elevated drought tolerance compared to parental wheat genotypes. Three years of field trials showed that GLA7 exhibits similar agronomic performance and yield components to the wheat parents. This unique addition line holds promise for enhancing wheat's tolerance to multiple stresses through the introduction of new resistance genes, as well as its ability to mitigate the effects of temporary water limitation during flowering, all without negatively impacting wheat performance.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10603 - Genetics and heredity (medical genetics to be 3)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Theoretical and Applied Genetics
ISSN
0040-5752
e-ISSN
1432-2242
Volume of the periodical
138
Issue of the periodical within the volume
1
Country of publishing house
DE - GERMANY
Number of pages
19
Pages from-to
13
UT code for WoS article
001383507200001
EID of the result in the Scopus database
2-s2.0-85212966747