Temperature affects major fatty acid biosynthesis in noug (Guizotia abyssinica) self-compatible lines
IntroductionNoug (Guizotia abyssinica) is an economically important edible oilseed crop in Ethiopia with a large variation in seed set, seed oil content, and fatty acid composition among populations. Although noug is generally strictly self-incompatible (SI), self-compatible (SC) lines were recently...
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Frontiers Media S.A.
2024-12-01
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| Series: | Frontiers in Nutrition |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fnut.2024.1511098/full |
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| author | Adane Gebeyehu Adane Gebeyehu Cecilia Hammenhag Kassahun Tesfaye Kassahun Tesfaye Rodomiro Ortiz Mulatu Geleta |
| author_facet | Adane Gebeyehu Adane Gebeyehu Cecilia Hammenhag Kassahun Tesfaye Kassahun Tesfaye Rodomiro Ortiz Mulatu Geleta |
| author_sort | Adane Gebeyehu |
| collection | DOAJ |
| description | IntroductionNoug (Guizotia abyssinica) is an economically important edible oilseed crop in Ethiopia with a large variation in seed set, seed oil content, and fatty acid composition among populations. Although noug is generally strictly self-incompatible (SI), self-compatible (SC) lines were recently developed. This study was conducted to investigate the levels of variation in seed setting and oleic acid content among the self-compatible lines.MethodsThe starting materials for the seed setting study were 200 genotypes selected from 100 inbred lines and having, on average, 57 seeds per capitulum, which is higher than that of the SI populations. The SC genotypes were analyzed for their oleic acid content using the half-seed technique.ResultsThe analysis of 20 SC lines revealed a high variation in oleic acid content with 70% of the SC lines having 20% or more oleic acid after they were grown under 25°C/21°C day/night temperatures (high-temperature treatment). The oleic acid content increased from 8.2% before to 22.5%, on average, after the high-temperature experiment in the greenhouse. In contrast, the percentage of oleic acid in these lines grown at 21°C/18°C day/night temperatures decreased from 8.2% to 4.4% on average. There was a highly significant positive correlation between oleic acid content and temperature in SC lines.ConclusionThe study suggests a significant contribution of genotype to the variation in seed setting and environmental factors (mostly temperature) to the oleic acid content. The noug SC-lines showed highly significant variation in seed setting and oleic acid content, which could be used for improving the crop’s seed yield and oil quality. |
| format | Article |
| id | doaj-art-8ea24e16a561494ba9b2ce403ead231e |
| institution | OA Journals |
| issn | 2296-861X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Nutrition |
| spelling | doaj-art-8ea24e16a561494ba9b2ce403ead231e2025-08-20T01:55:38ZengFrontiers Media S.A.Frontiers in Nutrition2296-861X2024-12-011110.3389/fnut.2024.15110981511098Temperature affects major fatty acid biosynthesis in noug (Guizotia abyssinica) self-compatible linesAdane Gebeyehu0Adane Gebeyehu1Cecilia Hammenhag2Kassahun Tesfaye3Kassahun Tesfaye4Rodomiro Ortiz5Mulatu Geleta6Department of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, SwedenBio and Emerging Technology Institute, Addis Ababa, EthiopiaDepartment of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, SwedenBio and Emerging Technology Institute, Addis Ababa, EthiopiaInstitute of Biotechnology, Addis Ababa University, Addis Ababa, EthiopiaDepartment of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, SwedenDepartment of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, SwedenIntroductionNoug (Guizotia abyssinica) is an economically important edible oilseed crop in Ethiopia with a large variation in seed set, seed oil content, and fatty acid composition among populations. Although noug is generally strictly self-incompatible (SI), self-compatible (SC) lines were recently developed. This study was conducted to investigate the levels of variation in seed setting and oleic acid content among the self-compatible lines.MethodsThe starting materials for the seed setting study were 200 genotypes selected from 100 inbred lines and having, on average, 57 seeds per capitulum, which is higher than that of the SI populations. The SC genotypes were analyzed for their oleic acid content using the half-seed technique.ResultsThe analysis of 20 SC lines revealed a high variation in oleic acid content with 70% of the SC lines having 20% or more oleic acid after they were grown under 25°C/21°C day/night temperatures (high-temperature treatment). The oleic acid content increased from 8.2% before to 22.5%, on average, after the high-temperature experiment in the greenhouse. In contrast, the percentage of oleic acid in these lines grown at 21°C/18°C day/night temperatures decreased from 8.2% to 4.4% on average. There was a highly significant positive correlation between oleic acid content and temperature in SC lines.ConclusionThe study suggests a significant contribution of genotype to the variation in seed setting and environmental factors (mostly temperature) to the oleic acid content. The noug SC-lines showed highly significant variation in seed setting and oleic acid content, which could be used for improving the crop’s seed yield and oil quality.https://www.frontiersin.org/articles/10.3389/fnut.2024.1511098/fullfatty acid compositionGuizotia abyssinicanougoleic acidself-compatibilitytemperature |
| spellingShingle | Adane Gebeyehu Adane Gebeyehu Cecilia Hammenhag Kassahun Tesfaye Kassahun Tesfaye Rodomiro Ortiz Mulatu Geleta Temperature affects major fatty acid biosynthesis in noug (Guizotia abyssinica) self-compatible lines Frontiers in Nutrition fatty acid composition Guizotia abyssinica noug oleic acid self-compatibility temperature |
| title | Temperature affects major fatty acid biosynthesis in noug (Guizotia abyssinica) self-compatible lines |
| title_full | Temperature affects major fatty acid biosynthesis in noug (Guizotia abyssinica) self-compatible lines |
| title_fullStr | Temperature affects major fatty acid biosynthesis in noug (Guizotia abyssinica) self-compatible lines |
| title_full_unstemmed | Temperature affects major fatty acid biosynthesis in noug (Guizotia abyssinica) self-compatible lines |
| title_short | Temperature affects major fatty acid biosynthesis in noug (Guizotia abyssinica) self-compatible lines |
| title_sort | temperature affects major fatty acid biosynthesis in noug guizotia abyssinica self compatible lines |
| topic | fatty acid composition Guizotia abyssinica noug oleic acid self-compatibility temperature |
| url | https://www.frontiersin.org/articles/10.3389/fnut.2024.1511098/full |
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