scholarly journals The Use of Genetic and Gene Technologies in Shaping Modern Rapeseed Cultivars (Brassica napus L.)

Genes ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 1161
Author(s):  
Linh Bao Ton ◽  
Ting Xiang Neik ◽  
Jacqueline Batley
Keyword(s):  
Brassica Napus ◽  
Abiotic Stress Tolerance ◽  
Oil Quality ◽  
Canola Meal ◽  
Brassica Napus L ◽  
Oil Crops ◽  
Meal Quality ◽  
Genomic Tools ◽  
Gene Technologies ◽  
Potential Use

Since their domestication, Brassica oilseed species have undergone progressive transformation allied with the development of breeding and molecular technologies. The canola (Brassica napus) crop has rapidly expanded globally in the last 30 years with intensive innovations in canola varieties, providing for a wider range of markets apart from the food industry. The breeding efforts of B. napus, the main source of canola oil and canola meal, have been mainly focused on improving seed yield, oil quality, and meal quality along with disease resistance, abiotic stress tolerance, and herbicide resistance. The revolution in genetics and gene technologies, including genetic mapping, molecular markers, genomic tools, and gene technology, especially gene editing tools, has allowed an understanding of the complex genetic makeup and gene functions in the major bioprocesses of the Brassicales, especially Brassica oil crops. Here, we provide an overview on the contributions of these technologies in improving the major traits of B. napus and discuss their potential use to accomplish new improvement targets.

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

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2220
Author(s):  
Kenny K. Y. So ◽  
Robert W. Duncan
Keyword(s):  
Brassica Napus ◽  
Protein Quality ◽  
Storage Proteins ◽  
Canola Meal ◽  
Protein Chain ◽  
Brassica Napus L ◽  
Production Chain ◽  
On The Road ◽  
Canola Proteins ◽  
Canola Protein

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.

scholarly journals Fine mapping of the QTL cqSPDA2 for chlorophyll content in Brassica napus L.

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Jingxiu Ye ◽  
Haidong Liu ◽  
Zhi Zhao ◽  
Liang Xu ◽  
Kaixiang Li ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Chlorophyll Content ◽  
Fine Mapping ◽  
Agronomic Traits ◽  
Economic Value ◽  
Chlorophyll Synthesis ◽  
Brassica Napus L ◽  
Oil Crops ◽  
Initial Location ◽  
Dh Lines

Abstract Background Chlorophyll is the most important factor enabling plants to absorb, transfer and transform light energy and plays an important role in yield formation. Brassica napus is one of the most important oil crops. Breeding Brassica napus for high light efficiency by improving photosynthetic efficiency has considerable social and economic value. In Brassica napus, there have been studies of the initial location of chlorophyll in seed embryos and pericarps, but there are few reports on the fine mapping of chlorophyll QTLs. We constructed near-isogenic lines (NIL), fine-mapped a chlorophyll locus, and evaluated the effect of this dominant locus on agronomic traits. Results The cqSPDA2 locus was mapped to an interval of 21.87–22.91 Mb on the chromosome A02 of Brassica napus using doubled haploid (DH) lines. To fine-map cqSPDA2, we built NIL and designed Indel primers covering the mapping interval. The 469 individuals in the BC3F2 population were analyzed using these indel primers. Among these indel primers, 15 could narrow the mapping interval to 188 kb between Indel3 and Indel15. Next, 16 indel primers and 19 SSR primers were designed within the new narrower mapping interval, and 5 of the primer-amplified fragments were found to be polymorphic and tightly linked to the cqSPDA2 locus in the BC4F2 population. The mapping interval was narrowed to 152 kb on A02 between SSR2 and Indel15. By gene expression analysis, we found three annotated genes in the mapping interval, including BnaA02g30260D, BnaA02g30290D and BnaA02g30310D, which may be responsible for chlorophyll synthesis. Conclusions The locus cqSPDA2, a dominant QTL for chlorophyll content in Brassica napus, was fine-mapped to a 21.89–22.04 Mb interval on A02. Three annotated genes (BnaA02g30260D, BnaA02g30290D and BnaA02g30310D) that may be responsible for chlorophyll synthesis were found.

Effect of time of sowing on oil content, erucic acid and glucosinolate contents in rapeseed (Brassica napus L. cv. Marnoo)

1986 ◽  
Vol 26 (5) ◽  
pp. 607 ◽  
Author(s):  
JP Sang ◽  
CA Bluett ◽  
BR Elliott ◽  
RJW Truscott
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Oil Content ◽  
Seed Meal ◽  
Glucosinolate Content ◽  
Brassica Napus L ◽  
Sowing Time ◽  
Meal Quality

The effect of time of sowing on the oil and meal quality of rapeseed (Brassica napus L. cv. Marnoo) was investigated at Werribee, Victoria, during 198 1 and 1982. In both years oil content declined with later sowing but the proportion of erucic acid in the oil was unaffected by sowing time. In contrast, later sowing increased the glucosinolate content of the seed meal, with July-September sowings exceeding the Canola standard. This increase was due primarily to the increased content of 2-hydroxybut-3- enyl glucosinolate (progoitrin).

scholarly journals Omics: The way forward to enhance abiotic stress tolerance in Brassica napus L.

2021 ◽  
Vol 12 (1) ◽  
pp. 251-281
Author(s):  
Ali Raza ◽  
Ali Razzaq ◽  
Sundas Saher Mehmood ◽  
Muhammad Azhar Hussain ◽  
Su Wei ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Brassica Napus ◽  
Stress Tolerance ◽  
Abiotic Stress Tolerance ◽  
Brassica Napus L ◽  
The Way

The influence of 3-(1H-Benzimidazol-2-yl)-4-phenylaminobutanoic acid sodium salt on summer rapeseed (Brassica napus L.) yield and oil quality

2013 ◽  
Vol 63 (1) ◽  
Author(s):  
R. Kolosej ◽  
V. Mickevičius ◽  
I. Jonuškienė ◽  
Z. Brazienė ◽  
E. Jakienė
Keyword(s):  
Brassica Napus ◽  
Sodium Salt ◽  
Oil Quality ◽  
Brassica Napus L ◽  
Acid Sodium Salt

scholarly journals Significant Reductions in Oil Quality and Lipid Content of Oilseed Rape (Brassica Napus L.) Under Climate Change

2015 ◽  
Vol 29 ◽  
pp. 121-122 ◽  
Author(s):  
Shahla Namazkar ◽  
Helge Egsgaard ◽  
Georg Frenck ◽  
Thilde Terkelsen ◽  
Rikke Bagger Jørgensen
Keyword(s):  
Climate Change ◽  
Brassica Napus ◽  
Oilseed Rape ◽  
Lipid Content ◽  
Oil Quality ◽  
Brassica Napus L

Pushing canola instead of windrowing can be a viable alternative

2010 ◽  
Vol 90 (2) ◽  
pp. 145-152 ◽  
Author(s):  
B. Irvine ◽  
G P Lafond
Keyword(s):  
Brassica Napus ◽  
New Technologies ◽  
Seed Quality ◽  
Crop Yields ◽  
Negative Impact ◽  
Oil Quality ◽  
Seed Color ◽  
Brassica Napus L ◽  
Green Seed ◽  
The Impact

Compared with direct harvesting, windrowing canola (Brassica napus L.) crop reduces maturation time and seed losses caused by shattering; however, windrows are prone to wind damage. While direct harvesting canola may reduce costs and lower green seed content, new technologies are required to effectively reduce shattering losses. Pushing is a potential replacement for swathing where pod movement is restricted by mechanically lodging the crop and letting the crop mature while still attached to the root system. This system purports to limit shattering and improve seed quality. Trials were conducted over a 3-yr period in western Canada to determine the impact of pushing canola relative to windrowing. Field-scale trials showed that yield and oil content typically did not differ between canola pushed and windrowed on the same date. In plot trials conducted at Brandon and Indian Head, crop yields were not decreased nor were green seed numbers increased by early pushing. It was observed that pushing worked best when crop stand and growth were good as well as when canola was pushed at or before 30-40% of the seeds have changed color and therefore are physiologically mature. While further work is required to identify the earliest time at which a crop can be pushed without a negative impact on yield or quality, the current trials indicate that with canola, pushing could occur at the start of seed color change without any negative impacts on grain yield and oil quality. Key words: Canola, windrowing, pushing, harvest, yield, seed size, Brassica napus L.

Sign in / Sign up

Export Citation Format

Share Document