Characterization of a major quantitative trait locus on the short arm of chromosome 4B for spike number per unit area in common wheat (Triticum aestivum L.)

Li, Jinghui; Wen, Shaozhe; Fan, Chaofeng; Zhang, Minghu; Tian, Shuang-Qi; Kang, Wenjing; Zhao, W. R.; Bi, Chan; Wang, Qiuyan; Lü, Shuang; Guo, Weilong; Xie, Chaojie; Sun, Qixin; You, Minsheng

doi:10.1007/s00122-020-03595-z

Cited by 17 publications

(12 citation statements)

References 53 publications

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“…They were also involved in plant growth and development. The 4BS results corroborate earlier studies [25,[46][47][48][49][50] on the importance of the 4BS and its contribution to grain yield in stressed environments.…”

Section: Detection Of Candidate Genes In Other Chromosomessupporting

confidence: 90%

Dissection of Quantitative Trait Loci (QTL), annotation of Single Nucleotide Polymorphism (SNP), and Identification of Candidate Genes for Grain Yield in Triticum turgidum L. var durum

Farouk¹,

Alsaleh²,

Motowaj³

et al. 2020

Adv. sci. technol. eng. syst. j.

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Durum wheat (Triticum turgidum L. var durum) is among the most important crops in the world. High and stable grain yield in diverse environments is the major objective in durum breeding programs. This trait is linked to the quantitative trait loci (QTL). For the detection of QTL linked to the grain yield, it is necessary to construct a high-density genetic linkage map. The aims of this study were to detect the candidate genes comprised in the QTLs on 2A chromosome linked to grain yield and annotate the single nucleotide polymorphisms (SNPs). The linkage map of Lahn/Cham1 population was used to identify QTLs. In multienvironmental analysis and employing bioinformatic approaches, 583 sequences corresponding to the SNPs markers selected from the detected QTL regions were analyzed, 122 SNP sequences were annotated of which 53% of the candidate genes were involved in stresses tolerance, 29.5% in plant development and growth, and 3.3% in cell transport. Moreover, 1.6% of candidate genes were retrotransposon and transposon 2.4% with unknown function. Further 9.8% were related in other cellular processes. The results also showed that 66.7% of the candidate genes harbored on 4B chromosome, were involved in stresses tolerance and 33.3% in plant development and growth. Additionally, in the specific and stressed environments analysis, the DNA sequences of the four QTL detected on 2A chromosome were used for homology search, 546 candidate genes were identified of which some were present in several QTL (F-box gene family, hydroxyproline-rich glycoproteinlike), retrotransposons and transposons and others. This study provided information on employing SNPs markers to detect candidate genes linked with grain yield trait in durum wheat in contrasting environments (dry, cold, hot).

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Section: Detection Of Candidate Genes In Other Chromosomessupporting

confidence: 90%

Dissection of Quantitative Trait Loci (QTL), annotation of Single Nucleotide Polymorphism (SNP), and Identification of Candidate Genes for Grain Yield in Triticum turgidum L. var durum

Farouk¹,

Alsaleh²,

Motowaj³

et al. 2020

Adv. sci. technol. eng. syst. j.

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“…However, interestingly, the EamA-like transporter gene has been reported in several major QTL studies in cereal crops. In bread wheat, it is located underlying major QTLs for kernel weight 60 as well as spike number per unit area 61 . The possible contribution of the EamA-like transporters towards abiotic stress tolerance has also been noted.…”

Section: Discussionmentioning

confidence: 99%

Small RNAs and their targets are associated with the transgenerational effects of water-deficit stress in durum wheat

Liu

Able

2021

Sci Rep

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Water-deficit stress negatively affects wheat yield and quality. Abiotic stress on parental plants during reproduction may have transgenerational effects on progeny. Here we investigated the transgenerational influence of pre-anthesis water-deficit stress by detailed analysis of the yield components, grain quality traits, and physiological traits in durum wheat. Next-generation sequencing analysis profiled the small RNA-omics, mRNA transcriptomics, and mRNA degradomics in first generation progeny. Parental water-deficit stress had positive impacts on the progeny for traits including harvest index and protein content in the less stress-tolerant variety. Small RNA-seq identified 1739 conserved and 774 novel microRNAs (miRNAs). Transcriptome-seq characterised the expression of 66,559 genes while degradome-seq profiled the miRNA-guided mRNA cleavage dynamics. Differentially expressed miRNAs and genes were identified, with significant regulatory patterns subject to trans- and inter-generational stress. Integrated analysis using three omics platforms revealed significant biological interactions between stress-responsive miRNA and targets, with transgenerational stress tolerance potentially contributed via pathways such as hormone signalling and nutrient metabolism. Our study provides the first confirmation of the transgenerational effects of water-deficit stress in durum wheat. New insights gained at the molecular level indicate that key miRNA-mRNA modules are candidates for transgenerational stress improvement.

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“…The yield can be evaluated through its related traits, like number of productive tillers, spike length, 1000-grain weight and number of spikelets per spike etc. ( Li et al, 2020 ). Genetic makeup of a variety is expressed under favorable environmental conditions; however, could differ in stressful environments ( Foulkes et al, 2011 , Li et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Grain yield and correlated traits of bread wheat lines: Implications for yield improvement

Ullah

Mahpara

Bibi

et al. 2021

Saudi Journal of Biological Sciences

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Global wheat yields are suffering due to differences in regional climatic conditions and soil fertility. Plant breeders are continuously working to improve the yield per unit area of wheat crop through selecting superior lines as parents. The screening and field evaluation of available lines allow the selection of superior ones and subsequently improved varieties. Therefore, heritable distinctions among 33 bread wheat lines for yield and related attributes were assessed under field conditions. The experiment included thirty lines and three check varieties. Data relating to different plant characteristics was collected at maturity. Significant differences were recorded for yield and related traits of tested wheat lines and check varieties. Wheat lines V 6 , V 12 and V 20 proved better with reduced number of days to reach anthesis and other desirable traits compared to check varieties. Days to start heading had strong correlation with spike length and number of spikelets spike -1 . Flag leaf area had positive relationship with peduncle length and yield related traits. The 1000-garin weight and grain yield were also correlated with each other. It is concluded that V 6 , V 10 and V 20 proved better for all studied traits than the rest of the lines. Therefore, these lines could be used in wheat breeding program as parents to improve yield.

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Characterization of a major quantitative trait locus on the short arm of chromosome 4B for spike number per unit area in common wheat (Triticum aestivum L.)

Cited by 17 publications

References 53 publications

Dissection of Quantitative Trait Loci (QTL), annotation of Single Nucleotide Polymorphism (SNP), and Identification of Candidate Genes for Grain Yield in Triticum turgidum L. var durum

Dissection of Quantitative Trait Loci (QTL), annotation of Single Nucleotide Polymorphism (SNP), and Identification of Candidate Genes for Grain Yield in Triticum turgidum L. var durum

Small RNAs and their targets are associated with the transgenerational effects of water-deficit stress in durum wheat

Grain yield and correlated traits of bread wheat lines: Implications for yield improvement

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