<scp>QTL</scp> mapping based on the embryo and maternal genetic systems for non‐essential amino acids in rapeseed (<i>Brassica napus</i> L.) meal

Wen, Jiaming; Xu, Jianfeng; Long, Yan; Wu, Jianguo; Xu, Hongwei; Meng, Jianghong; Shi, Chao

doi:10.1002/jsfa.7112

Cited by 8 publications

(7 citation statements)

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“…Palmitic acid (C16:0 ) is the most common saturated fatty acid found in animals, plants, and microorganisms and is also the precursor to longer fatty acids ( 113 ). Many QTLs have been reported in major oilseed crops such as peanut ( 65 , 66 ), soybean ( 83 ), and B. napus ( 87 , 89 , 95 , 96 , 100 ) for this trait. The details of the marker linked to palmitic acid content are given in Table 1 .…”

Section: Introductionmentioning

confidence: 99%

“…In B. napus , QTLs were identified for lysine, threonine, and methionine content (qLysC-16-3, qThrC-12-5, and qMetC-9-5) in DH lines on chromosomes C6, C2, and A9 ( 93 ). In B. napus , arginine, histidine, glutamic acid, glycine, alanine, and aspartic acid content was improved through QTLs such as qArgC-8-5, qHisC-4-3, qGluC-1-1, qGlyC-4-1, qProC-1-1, qAlaC-7-3 , and qAspC-9-4 in BC lines on chromosomes A1, A4, A7, A8, and A9 ( 100 ). The details of the linked markers to these QTLs are given in Table 1 .…”

Section: Introductionmentioning

confidence: 99%

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Enhancing the Nutritional Quality of Major Food Crops Through Conventional and Genomics-Assisted Breeding

et al. 2020

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Nutritional stress is making over two billion world population malnourished. Either our commercially cultivated varieties of cereals, pulses, and oilseed crops are deficient in essential nutrients or the soils in which these crops grow are becoming devoid of minerals. Unfortunately, our major food crops are poor sources of micronutrients required for normal human growth. To overcome the problem of nutritional deficiency, greater emphasis should be laid on the identification of genes/quantitative trait loci (QTLs) pertaining to essential nutrients and their successful deployment in elite breeding lines through marker-assisted breeding. The manuscript deals with information on identified QTLs for protein content, vitamins, macronutrients, micro-nutrients, minerals, oil content, and essential amino acids in major food crops. These QTLs can be utilized in the development of nutrient-rich crop varieties. Genome editing technologies that can rapidly modify genomes in a precise way and will directly enrich the nutritional status of elite varieties could hold a bright future to address the challenge of malnutrition.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhancing the Nutritional Quality of Major Food Crops Through Conventional and Genomics-Assisted Breeding

et al. 2020

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“…Few reports have focused on the identification of QTL associated with total seed protein in canola (Schatzki et al, 2014 ; Chao et al, 2017 ; Behnke et al, 2018 ). Even fewer reports of QTL are associated with amino acid (Wen et al, 2016 ). Brassica quality breeding programs have made efforts to increase protein content and improve the composition of essential amino acids such as lysine (Falco et al, 1995 ; Wang et al, 2011 ) and methionine (Kohno-Murase et al, 1995 ; Galvez et al, 2008 ).…”

Section: Discussionmentioning

confidence: 99%

Genomic Regions Associated With Seed Meal Quality Traits in Brassica napus Germplasm

et al. 2022

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The defatted Brassica napus (rapeseed) meal can be high-protein feed for livestock as the protein value of rapeseed meal is higher than that of the majority of other vegetable proteins. Extensive work has already been carried out on developing canola rapeseed where the focus was on reducing erucic acid and glucosinolate content, with less consideration to other antinutritional factors such as tannin, phytate, sinapine, crude fiber, etc. The presence of these antinutrients limits the use and marketing of rapeseed meals and a significant amount of it goes unused and ends up as waste. We investigated the genetic architecture of crude protein, methionine, tryptophan, total phenols, β-carotene, glucosinolates (GLSs), phytate, tannins, sinapine, and crude fiber content of defatted seed meal samples by conducting a genome-wide association study (GWAS), using a diversity panel comprising 96 B. napus genotypes. Genotyping by sequencing was used to identify 77,889 SNPs, spread over 19 chromosomes. Genetic diversity and phenotypic variations were generally high for the studied traits. A total of eleven genotypes were identified which showed high-quality protein, high antioxidants, and lower amount of antinutrients. A significant negative correlation between protein and limiting amino acids and a significant positive correlation between GLS and phytic acid were observed. General and mixed linear models were used to estimate the association between the SNP markers and the seed quality traits and quantile-quantile (QQ) plots were generated to allow the best-fit algorithm. Annotation of genomic regions around associated SNPs helped to predict various trait-related candidates such as ASP2 and EMB1027 (amino acid biosynthesis); HEMA2, GLU1, and PGM (tryptophan biosynthesis); MS3, CYSD1, and MTO1 (methionine biosynthesis); LYC (β-carotene biosynthesis); HDR and ISPF (MEP pathway); COS1 (riboflavin synthesis); UGT (phenolics biosynthesis); NAC073 (cellulose and hemicellulose biosynthesis); CYT1 (cellulose biosynthesis); BGLU45 and BGLU46 (lignin biosynthesis); SOT12 and UGT88A1 (flavonoid pathway); and CYP79A2, DIN2, and GSTT2 (GLS metabolism), etc. The functional validation of these candidate genes could confirm key seed meal quality genes for germplasm enhancement programs directed at improving protein quality and reducing the antinutritional components in B. napus.

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“…In contrast, comparatively few reports have focused on the identification of QTL associated with total seed protein in canola [ 145 , 148 , 149 , 155 ]. Even fewer are reports of QTL associated with protein quality traits such as SSP composition [ 155 ] and amino acid content [ 156 ].…”

Section: Genetic Control Of Seed Storage Proteins In Canolamentioning

confidence: 99%

“…Correlations between markers and phenotypic data are performed using various statistical methods [ 286 ]. Linkage mapping has been successfully employed in canola to identify molecular markers that co-segregate with total seed protein [ 145 , 146 , 147 , 148 , 149 ], seed storage protein content [ 155 ], and non-essential amino acid content [ 156 ].…”

Section: Plant Breeding In the Omics Eramentioning

confidence: 99%

Breeding Canola (Brassica napus L.) for Protein in Feed and Food

Duncan

2021

Plants

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Interest in canola (Brassica napus L.) In response to this interest, scientists have been tasked with altering and optimizing the protein production chain to ensure canola proteins are safe for consumption and economical to produce. Specifically, the role of plant breeders in developing suitable varieties with the necessary protein profiles is crucial to this interdisciplinary endeavour. In this article, we aim to provide an overarching review of the canola protein chain from the perspective of a plant breeder, spanning from the genetic regulation of seed storage proteins in the crop to advancements of novel breeding technologies and their application in improving protein quality in canola. A review on the current uses of canola meal in animal husbandry is presented to underscore potential limitations for the consumption of canola meal in mammals. General discussions on the allergenic potential of canola proteins and the regulation of novel food products are provided to highlight some of the challenges that will be encountered on the road to commercialization and general acceptance of canola protein as a dietary protein source.

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QTL mapping based on the embryo and maternal genetic systems for non‐essential amino acids in rapeseed (Brassica napus L.) meal

Abstract: Non-essential amino acids in rapeseed meal could be simultaneously controlled by the genetic effects from the QTLs which were located on the chromosomes both in the embryo and maternal plant genetic systems.

Cited by 8 publications

References 30 publications

Enhancing the Nutritional Quality of Major Food Crops Through Conventional and Genomics-Assisted Breeding

Enhancing the Nutritional Quality of Major Food Crops Through Conventional and Genomics-Assisted Breeding

Genomic Regions Associated With Seed Meal Quality Traits in Brassica napus Germplasm

Breeding Canola (Brassica napus L.) for Protein in Feed and Food

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