Mapping of QTLs Associated with Yield and Yield Related Traits in Durum Wheat (Triticum durum Desf.) Under Irrigated and Drought Conditions
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- Mapping of QTLs Associated with Yield and Yield Related Traits in Durum Wheat (Triticum durum Desf.) Under Irrigated and Drought Conditions
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Global durum wheat consumption (Triticum durum Desf.) is ahead of its production. One reason for this is abiotic stress, e.g., drought. Breeding for resistance to drought is complicated by the lack of fast, reproducible screening techniques and the inability to routinely create defined and repeatable water stress conditions. Here, we report the first analysis of dissection of yield and yield-related traits in durum wheat in Pakistan, seeking to elucidate the genetic components of yield and agronomic traits. Analysis of several traits revealed a total of 221 (160 with logarithm of odds (LOD) > 2 3) quantitative trait loci (QTLs) distributed on all fourteen durum wheat chromosomes, of which 109 (78 with LOD > 2 3) were observed in 2016-17 (S1) and 112 (82 with LOD > 2 3) were observed in 2017-18 (S2). Allelic profiles of yield QTLs on chromosome 2A and 7B indicate that allele A of Xgwm895 and allele B of Xbarc276 can enhance the Yd up to 6.16% in control and 5.27% under drought. Moreover, if combined, a yield gain of up to 11% would be possible.
Original language | English |
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Article number | 2372 |
Journal | International Journal of Molecular Sciences |
Volume | 21 |
Issue number | 7 |
Number of pages | 25 |
ISSN | 1661-6596 |
DOIs | |
Publication status | Published - 2020 |
- Triticum durum, QTL mapping, drought stress, yield, stress indices, marker assisted selection, STOMATAL-CONDUCTANCE, GENETIC-BASIS, LINKAGE MAP, WATER-USE, RESISTANCE, STRESS, LOCI, POPULATIONS, ADAPTATION, CHARACTERS
Research areas
ID: 249480410