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10. Homoeologous non-reciprocal translocation explains a major QTL for seed lignin content in oilseed rape ( L.)

Author

Schilbert, Hanna, Holzenkamp, Karin, Viehöver, Prisca, Holtgräwe, Daniela, and Möllers, Christian

Abstract

Oilseed rape is a major oil crop and a valuable protein source for animal and human nutrition. Lignin is a non-digestible, major component of the seed coat with negative effect on sensory quality, bioavailability and usage of oilseed rape’s protein. Hence, seed lignin reduction is of economic and nutritional importance. In this study, the major QTL for reduced lignin content found on chromosome C05 in the DH population SGDH14 x Express 617 was further examined. SGDH14 had lower seed lignin content than Express 617. Harvested seeds from a F2 population of the same cross were additionally field tested and used for seed quality analysis. The F2 population showed a bimodal distribution for seed lignin content. F2 plants with low lignin content had thinner seed coats compared to high lignin lines. Both groups showed a dark seed colour with a slightly lighter colour in the low lignin group indicating that a low lignin content is not necessarily associated with yellow seed colour. Mapping of genomic long-reads from SGDH14 against the Express 617 genome assembly revealed a homoeologous non-reciprocal translocation (HNRT) in the confidence interval of the major QTL for lignin content. A homologous A05 region is duplicated and replaced the C05 region in SGDH14. As consequence several genes located in the C05 region were lost in SGDH14. Thus, a HNRT was identified in the major QTL region for reduced lignin content in the low lignin line SGDH14. The most promising candidate gene related to lignin biosynthesis on C05, PAL4, was deleted.

Published
2023

38. NIRS for vicine and convicine content of faba bean seed allowed GWAS to prepare for marker-assisted adjustment of seed quality of German winter faba beans.

Author

Puspitasari, Winda, Allemann, Björn, Angra, Deepti, Appleyard, Helen, Ecke, Wolfgang, Möllers, Christian, Nolte, Tanja, Purves, Randy W., Renner, Carsten, Robertson-Shersby-Harvie, Thomas, Tacke, Rebecca, Windhorst, Alex, Yaman, Sonja, and Link, Wolfgang

Subjects
NEAR infrared spectroscopy, SEED quality, FAVA bean, GENOME-wide association studies, SEEDS, WINTER
Abstract

Copyright of Journal of Cultivated Plants / Journal für Kulturpflanzen is the property of Verlag Eugen Ulmer and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022
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48. Effects of intensive and alternative production systems on the technological and quality parameters of rapeseed seed ( Brassica napus L. 'Siska').

Author

Turinek, Maja, Bavec, Martina, Repič, Milan, Turinek, Matjaž, Krajnc, Andreja Urbanek, Möllers, Christian, Tres, Alba, and Bavec, Franc

Subjects
ORGANIC farming, RAPESEED products, CARBON compounds spectra, FATTY acids, CHEMOMETRICS, GAS chromatography, NEAR infrared spectroscopy
Abstract

BACKGROUND Organic production is widely assumed to affect quality and nutritional parameters of arable crops. A field experiment was started in 2009 following integrated ( INT), organic ( ORG) and biodynamic ( BD) production standards for wheat, maize and rapeseed production. With resort to standard analytical procedures and chemometrics, compositional parameters of Brassica napus L. 'Siska' seed (water, protein, oil and glucosinolate content) by non-destructive near-infrared spectroscopy ( NIRS), and fatty acid composition determined by gas chromatography, were assessed. RESULTS The BD and ORG production systems positively influenced oleic fatty acid and oil content in comparison to INT, which had higher levels of protein and water content (19.8% and 4.7%, respectively), as well as linolenic (3.8%), gadoleic (12.6%) and hexadecadienoic (15.5%) fatty acids. Increases in the listed parameters were linked to mineral fertilizer application in the INT production system. With principal component analysis ( PCA) the INT samples were clearly differentiated. The PCA results were influenced by differences in linolenic, gadoleic and behenic fatty acid levels as well as protein and water content. CONCLUSION Because quality parameters in rapeseed are increased in alternative production systems, production with an understanding of the soil processes and yield formation presents an opportunity for ORG and BD farmers. © 2016 Society of Chemical Industry [ABSTRACT FROM AUTHOR]

Published
2017
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