Oil Crop Breeding and Genetics

Vollmann, J.; Rajcan, Istvan

doi:10.1007/978-0-387-77594-4_1

Cited by 30 publications

(27 citation statements)

References 135 publications

(126 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, the value to insect visitors and pollinators of new varieties of flowering crops, such as OSR, is not considered in breeding programmes or current certification criteria (OECD, 2016). Non‐GM, conventionally bred OSR varieties are developed either through classical line‐breeding methods, making crosses and selecting the most promising genotypes to produce uniform, open‐pollinated (OP) varieties (Friedt & Snowdon, 2009), or as hybrids that demonstrate improved yields through heterosis (Frauen et al ., 2003; Rai et al ., 2007). Hybrid seed is obtained from a male‐sterile parent line through crossing with a male‐fertile parent line that confers fertility restorer genes to the F1 offspring, which then produce pollen and seed.…”

Section: Introductionmentioning

confidence: 99%

“…In lines with cytoplasmic male sterility (CMS), a mutation in the mitochondrial genome inhibits the development of pollen, whereas in lines with genic male sterility (GMS), male sterility develops due to the action of genes located in the nucleus (Ke et al ., 2005). Hybrid and OP varieties are cultivated in Europe, whereas hybrids, together with genetically modified, varieties are grown in North America (Friedt & Snowdon, 2009) and Australia (Oliver et al ., 2016). …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Oilseed rape (Brassica napus) as a resource for farmland insect pollinators: quantifying floral traits in conventional varieties and breeding systems

et al. 2017

View full text Add to dashboard Cite

Oilseed rape (OSR; Brassica napus L.) is a major crop in temperate regions and provides an important source of nutrition to many of the yield‐enhancing insect flower visitors that consume floral nectar. The manipulation of mechanisms that control various crop plant traits for the benefit of pollinators has been suggested in the bid to increase food security, but little is known about inherent floral trait expression in contemporary OSR varieties or the breeding systems used in OSR breeding programmes. We studied a range of floral traits in glasshouse‐grown, certified conventional varieties of winter OSR to test for variation among and within breeding systems. We measured 24‐h nectar secretion rate, amount, concentration and ratio of nectar sugars per flower, and sizes and number of flowers produced per plant from 24 varieties of OSR representing open‐pollinated (OP), genic male sterility (GMS) hybrid and cytoplasmic male sterility (CMS) hybrid breeding systems. Sugar concentration was consistent among and within the breeding systems; however, GMS hybrids produced more nectar and more sugar per flower than CMS hybrid or OP varieties. With the exception of ratio of fructose/glucose in OP varieties, we found that nectar traits were consistent within all the breeding systems. When scaled, GMS hybrids produced 1.73 times more nectar resource per plant than OP varieties. Nectar production and amount of nectar sugar in OSR plants were independent of number and size of flowers. Our data show that floral traits of glasshouse‐grown OSR differed among breeding systems, suggesting that manipulation and enhancement of nectar rewards for insect flower visitors, including pollinators, could be included in future OSR breeding programmes.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Oilseed rape (Brassica napus) as a resource for farmland insect pollinators: quantifying floral traits in conventional varieties and breeding systems

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Generally, oilseed breeding is a more complex undertaking than the breeding of cereals or legumes, as many oilseeds such as soybean, rapeseed, sunflower and linseed have the potential to be dual- or multi-purpose crops, which require the simultaneous manipulation of quality and agronomic traits (Vollmann and Rajcan 2009). Conventional breeding has been conducted in linseed for over a century and has been particularly successful in adapting crop phenology to regional growing seasons as well as providing yield stability across environments (Green et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Association mapping of seed quality traits using the Canadian flax (Linum usitatissimum L.) core collection

et al. 2014

View full text Add to dashboard Cite

Key messageThe identification of stable QTL for seed quality traits by association mapping of a diverse panel of linseed accessions establishes the foundation for assisted breeding and future fine mapping in linseed.AbstractLinseed oil is valued for its food and non-food applications. Modifying its oil content and fatty acid (FA) profiles to meet market needs in a timely manner requires clear understanding of their quantitative trait loci (QTL) architectures, which have received little attention to date. Association mapping is an efficient approach to identify QTL in germplasm collections. In this study, we explored the quantitative nature of seed quality traits including oil content (OIL), palmitic acid, stearic acid, oleic acid, linoleic acid (LIO) linolenic acid (LIN) and iodine value in a flax core collection of 390 accessions assayed with 460 microsatellite markers. The core collection was grown in a modified augmented design at two locations over 3 years and phenotypic data for all seven traits were obtained from all six environments. Significant phenotypic diversity and moderate to high heritability for each trait (0.73–0.99) were observed. Most of the candidate QTL were stable as revealed by multivariate analyses. Nine candidate QTL were identified, varying from one for OIL to three for LIO and LIN. Candidate QTL for LIO and LIN co-localized with QTL previously identified in bi-parental populations and some mapped nearby genes known to be involved in the FA biosynthesis pathway. Fifty-eight percent of the QTL alleles were absent (private) in the Canadian cultivars suggesting that the core collection possesses QTL alleles potentially useful to improve seed quality traits. The candidate QTL identified herein will establish the foundation for future marker-assisted breeding in linseed.Electronic supplementary materialThe online version of this article (doi:10.1007/s00122-014-2264-4) contains supplementary material, which is available to authorized users.

show abstract

“…In a similar manner, the proportion of the fatty acid groups (SFA, MUFA, PUFA) also differed between isolates but to a smaller degree than the content of TFA, and the environmental conditions had a larger impact on the composition of fatty acids. Variation in the content and composition of fatty acids has been demonstrated for genotypes of terrestrial oil crops such as rapeseed [25] and soybean [54] and also for various species of microalgae [17,22,27], with significant increases in the content and also composition of fatty acids through selective breeding and strain selection [55]. In seaweed, however, this branch of research is still in its infancy but first improvements of the total lipid content by 20% in the commercially important kelp Macrocystis through selective breeding have been reported [33] and mark a first step in the domestication of seaweeds for oil-based bioproducts.…”

Section: Total Fatty Acid Content and Fatty Acid Compositionmentioning

confidence: 98%

Environmental effects on growth and fatty acids in three isolates of Derbesia tenuissima (Bryopsidales, Chlorophyta)

et al. 2015

View full text Add to dashboard Cite

Oil Crop Breeding and Genetics

Cited by 30 publications

References 135 publications

Oilseed rape (Brassica napus) as a resource for farmland insect pollinators: quantifying floral traits in conventional varieties and breeding systems

Oilseed rape (Brassica napus) as a resource for farmland insect pollinators: quantifying floral traits in conventional varieties and breeding systems

Association mapping of seed quality traits using the Canadian flax (Linum usitatissimum L.) core collection

Environmental effects on growth and fatty acids in three isolates of Derbesia tenuissima (Bryopsidales, Chlorophyta)

Contact Info

Product

Resources

About