Abstract
Drought is one of the major environmental constraints for wheat production world-wide. As the progenitor and genetic reservoir of common wheat, emmer wheat is considered as an invaluable gene pool for breeding drought-tolerant wheat. Combining GWAS and eGWAS analysis of 107 accessions, we identified 86 QTLs, 105 462 eQTLs as well as 68 eQTL hotspots associating with drought tolerance (DT) in emmer wheat. A complex regulatory network composed of 185 upstream regulator and 2432 downstream drought-responsive candidates was developed, of which TtOTS1 was found to play a negative effect in determining DT through affecting root development. This study sheds light on revealing the genetic basis underlying DT, which will provide the indispensable genes and germplasm resources for elite drought tolerance wheat improvement and breeding.
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Claims 5
Claim · model-written summary
GWAS and eGWAS identified 86 QTLs associated with drought tolerance.
Verbatim
e0“we identified 86 QTLs, 105 462 eQTLs as well as 68 eQTL hotspots associating with drought tolerance (DT) in emmer wheat”
Claim · model-written summary
GWAS and eGWAS identified 105 462 eQTLs associated with drought tolerance.
Verbatim
e0“we identified 86 QTLs, 105 462 eQTLs as well as 68 eQTL hotspots associating with drought tolerance (DT) in emmer wheat”
Claim · model-written summary
GWAS and eGWAS identified 68 eQTL hotspots associated with drought tolerance.
Verbatim
e0“we identified 86 QTLs, 105 462 eQTLs as well as 68 eQTL hotspots associating with drought tolerance (DT) in emmer wheat”
Claim · model-written summary
A drought regulatory network comprised 185 upstream regulators and 2432 downstream drought-responsive candidates.
Verbatim
e0“A complex regulatory network composed of 185 upstream regulator and 2432 downstream drought-responsive candidates was developed”
t0“emmer wheat”
Claim · model-written summary
TtOTS1 negatively affected drought tolerance through root development.
Verbatim
e0“TtOTS1 was found to play a negative effect in determining DT through affecting root development”
t0“emmer wheat”