دورية أكاديمية
Seasonal differences in structural and genetic control of digestibility in perennial ryegrass
| العنوان: | Seasonal differences in structural and genetic control of digestibility in perennial ryegrass |
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| المؤلفون: | Colas, Vincent, Barre, Philippe, van Parijs, Frederik, Wolters, Lukas, Quitté, Yannick, Ruttink, Tom, Roldán-Ruiz, Isabel, Escobar Gutiérrez, Abraham J., Muylle, Hilde |
| المصدر: | FRONTIERS IN PLANT SCIENCE ; ISSN: 1664-462X |
| بيانات النشر: | Frontiers Media SA |
| سنة النشر: | 2022 |
| المجموعة: | Ghent University Academic Bibliography |
| مصطلحات موضوعية: | Biology and Life Sciences, Plant Science, QTL, genotype, cell wall, season, digestibility, quality, Lolium perenne L |
| الوصف: | Perennial ryegrass is an important forage crop in dairy farming, either for grazing or haying purposes. To further optimise the forage use, this study focused on understanding forage digestibility in the two most important cuts of perennial ryegrass, the spring cut at heading and the autumn cut. In a highly diverse collection of 592 Lolium perenne genotypes, the organic matter digestibility (OMD) and underlying traits such as cell wall digestibility (NDFD) and cell wall components (cellulose, hemicellulose, and lignin) were investigated for 2 years. A high genotype x season interaction was found for OMD and NDFD, indicating differences in genetic control of these forage quality traits in spring versus autumn. OMD could be explained by both the quantity of cell wall content (NDF) and the quality of the cell wall content (NDFD). The variability in NDFD in spring was mainly explained by differences in hemicellulose. A 1% increase of the hemicellulose content in the cell wall (HC.NDF) resulted in an increase of 0.81% of NDFD. In autumn, it was mainly explained by the lignin content in the cell wall (ADL.NDF). A 0.1% decrease of ADL.NDF resulted in an increase of 0.41% of NDFD. The seasonal traits were highly heritable and showed a higher variation in autumn versus spring, indicating the potential to select for forage quality in the autumn cut. In a candidate gene association mapping approach, in which 503 genes involved in cell wall biogenesis, plant architecture, and phytohormone biosynthesis and signalling, identified significant quantitative trait loci (QTLs) which could explain from 29 to 52% of the phenotypic variance in the forage quality traits OMD and NDFD, with small effects of each marker taken individually (ranging from 1 to 7%). No identical QTLs were identified between seasons, but within a season, some QTLs were in common between digestibility traits and cell wall composition traits confirming the importance of hemicellulose concentration for spring digestibility and lignin concentration in NDF for ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | https://biblio.ugent.be/publication/01HN2D0AZQAWB6HW1MNZYM2F2ETest; http://hdl.handle.net/1854/LU-01HN2D0AZQAWB6HW1MNZYM2F2ETest; http://doi.org/10.3389/fpls.2021.801145Test; https://biblio.ugent.be/publication/01HN2D0AZQAWB6HW1MNZYM2F2E/file/01HN2D39XW7HGBDV1N63ENP7SCTest |
| DOI: | 10.3389/fpls.2021.801145 |
| الإتاحة: | https://doi.org/10.3389/fpls.2021.801145Test https://biblio.ugent.be/publication/01HN2D0AZQAWB6HW1MNZYM2F2ETest http://hdl.handle.net/1854/LU-01HN2D0AZQAWB6HW1MNZYM2F2ETest https://biblio.ugent.be/publication/01HN2D0AZQAWB6HW1MNZYM2F2E/file/01HN2D39XW7HGBDV1N63ENP7SCTest |
| حقوق: | Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.2217C1ED |
| قاعدة البيانات: | BASE |
| DOI: | 10.3389/fpls.2021.801145 |
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