Molecular mapping of a novel QTL for resistance to cereal cyst nematode in F4 wheat population

Al-Ateeq, Talal K.; Al‐Doss, Abdullah A.; Al-Hazmi, A. S.; Ghazy, Abdelhalim I.; Dawabah, Ahmed M.; Motawei, M. I.

doi:10.1007/s42976-021-00159-9

Cited by 5 publications

(3 citation statements)

References 28 publications

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“…The eight QTLs identified by CIM and ICIM in the present study, when compared with QTLs reported in earlier studies, suggest that majority of the QTL identified in the present study are novel and were not identified in earlier studies [ 22 – 26 ]. However, the physical positions of at least some of these eight QTLs (particularly the one on chromosome 1B) reported during the present study are different from those reported earlier (see Fig.…”

Section: Discussionsupporting

confidence: 46%

Mapping of QTLs and meta-QTLs for Heterodera avenae Woll. resistance in common wheat (Triticum aestivum L.)

Pundir,

Singh,

Singh

et al. 2023

BMC Plant Biol

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Background In hexaploid wheat, quantitative trait loci (QTL) and meta-QTL (MQTL) analyses were conducted to identify genomic regions controlling resistance to cereal cyst nematode (CCN), Heterodera avenae. A mapping population comprising 149 RILs derived from the cross HUW 468 × C 306 was used for composite interval mapping (CIM) and inclusive composite interval mapping (ICIM). Results Eight main effect QTLs on three chromosomes (1B, 2A and 3A) were identified using two repeat experiments. One of these QTLs was co-localized with a previously reported wheat gene Cre5 for resistance to CCN. Seven important digenic epistatic interactions (PVE = 5% or more) were also identified, each involving one main effect QTL and another novel E-QTL. Using QTLs earlier reported in literature, two meta-QTLs were also identified, which were also used for identification of 57 candidate genes (CGs). Out of these, 29 CGs have high expression in roots and encoded the following proteins having a role in resistance to plant parasitic nematodes (PPNs): (i) NB-ARC,P-loop containing NTP hydrolase, (ii) Protein Kinase, (iii) serine-threonine/tyrosine-PK, (iv) protein with leucine-rich repeat, (v) virus X resistance protein-like, (vi) zinc finger protein, (vii) RING/FYVE/PHD-type, (viii) glycosyl transferase, family 8 (GT8), (ix) rubisco protein with small subunit domain, (x) protein with SANT/Myb domain and (xi) a protein with a homeobox. Conclusion Identification and selection of resistance loci with additive and epistatic effect along with two MQTL and associated CGs, identified in the present study may prove useful for understanding the molecular basis of resistance against H. avenae in wheat and for marker-assisted selection (MAS) for breeding CCN resistant wheat cultivars.

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Section: Discussionsupporting

confidence: 46%

Mapping of QTLs and meta-QTLs for Heterodera avenae Woll. resistance in common wheat (Triticum aestivum L.)

Pundir,

Singh,

Singh

et al. 2023

BMC Plant Biol

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“…Singh et al 56 and William et al 51 reported QTLs, Qcre.pau-1A and QCre.srd-1B on chromosomes 1A and 1B, respectively. In a recent study, Al-Ateeq et al 57 a major novel resistance locus was mapped on chromosome 1BS.…”

Section: Discussionmentioning

confidence: 99%

QTL mapping for resistance against cereal cyst nematode (Heterodera avenae Woll.) in wheat (Triticum aestivum L.)

Pundir

Sharma

Kumar

et al. 2022

Sci Rep

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The resistance to cereal cyst nematode (Heterodera avenae Woll.) in wheat (Triticum aestivum L.) was studied using 114 doubled haploid lines from a novel ITMI mapping population. These lines were screened for nematode infestation in a controlled environment for two years. QTL-mapping analyses were performed across two years (Y1 and Y2) as well as combining two years (CY) data. On the 114 lines that were screened, a total of 2,736 data points (genotype, batch or years, and replication combinations) were acquired. For QTL analysis, 12,093 markers (11,678 SNPs and 415 SSRs markers) were used, after filtering the genotypic data, for the QTL mapping. Composite interval mapping, using Haley-Knott regression (hk) method in R/QTL, was used for QTL analysis. In total, 19 QTLs were detected out of which 13 were novel and six were found to be colocalized or nearby to previously reported Cre genes, QTLs or MTAs for H. avenae or H. filipjevi. Nine QTLs were detected across all three groups (Y1, Y2 and CY) including a significant QTL "QCcn.ha-2D" on chromosome 2D that explains 23% of the variance. This QTL colocalized with a previously identified Cre3 locus. Novel QTL, QCcn.ha-2A, detected in the present study could be the possible unreported homeoloci to QCcn.ha-2D, QCcn.ha-2B.1 and QCcn.ha-2B.2. Six significant digenic epistatic interactions were also observed. In addition, 26 candidate genes were also identified including genes known for their involvement in PPNs (plant parasitic nematodes) resistance in different plant species. In-silico expression of putative candidate genes showed differential expression in roots during specific developmental stages. Results obtained in the present study are useful for wheat breeding to generate resistant genetic resources against H. avenae.

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“…Wheat (Triticum aestivum) is the second most produced cereal in the world and is one of the main sources of animal and human food (De Mamann et al, 2017;Al-Ateeq et al, 2021). High wheat yields depend on efficient cultivars, favorable soil and climate conditions for cultivation, and management technologies (Brezolin et al, 2017;Linina and Ruza, 2018).…”

Section: Introductionmentioning

confidence: 99%

Research Article Dose and form of nitrogen supply in the relationship dynamics of wheat ear components with yield in cropping systems

Pansera,

Da Silva,

Alessi

et al. 2022

Genet. Mol. Res.

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Nitrogen management distinctly influences the expression and magnitude of relationships between wheat ear components and grain yield. We sought to determine the variables linked to wheat ear that are more responsive to changes in the dose and form of nitrogen supply and to determine the direct and indirect effects on grain yield by single and fractional nitrogen supply in soybean/wheat and corn/wheat succession systems. The study was conducted in 2018 and 2019 in a randomized block experimental design with four replications, in a 3 x 3 factorial, for N-fertilizer doses (30, 60, 120 kg ha-1) and forms of supply [single dose (100 %) in phenological stage V 3 (third expanded leaf); fractionated dose (70% and 30%) at the V 3 /V 6 phenological stage (third and sixth expanded leaf) and; fractionated dose (70% and 30%) at phenological stage V 3 /R 1 (expanded third leaf and beginning of grain filling)], respectively, in the soybean/wheat and corn/wheat succession systems. The increase in the nitrogen doses promotes productivity due to the greater contribution of grain mass and ear length in the V 3 stage and ear grain mass in V 3 /V 6 and V 3 /R 1, in a soybean/wheat system. In the corn/wheat system, the increase in nitrogen promotes productivity, with a greater contribution of grain ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 21 (1): gmr19008 V. Pansera et al. 2 mass in the ear, regardless of the form of supply. Nitrogen supply in single dose (V 3) and fractionated in theV 3 /V 6 gave similar productivity, with a reduction in V 3 /R 1. The grain mass of the ear showed greater contribution of alteration by the form of single and fractioned nitrogen supply, regardless of the dose and succession system. The grain mass of the ear shows a high correlation with yield, regardless of the dose and form of nitrogen supply in the soybean/wheat system, with a positive indirect effect by the ear mass. In the corn/wheat system, ear grain mass shows a high correlation with yield, when nitrogen is supplied in a single dose at 30 and 60 kg ha -1 , with a positive indirect effect due to ear length.

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Molecular mapping of a novel QTL for resistance to cereal cyst nematode in F4 wheat population

Cited by 5 publications

References 28 publications

Mapping of QTLs and meta-QTLs for Heterodera avenae Woll. resistance in common wheat (Triticum aestivum L.)

Mapping of QTLs and meta-QTLs for Heterodera avenae Woll. resistance in common wheat (Triticum aestivum L.)

QTL mapping for resistance against cereal cyst nematode (Heterodera avenae Woll.) in wheat (Triticum aestivum L.)

Research Article Dose and form of nitrogen supply in the relationship dynamics of wheat ear components with yield in cropping systems

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