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The Brassica napus fatty acid exporter FAX1-1 contributes to biological yield, seed oil content, and oil quality
BACKGROUND: In the oilseed crop Brassica napus (rapeseed), various metabolic processes influence seed oil content, oil quality, and biological yield. However, the role of plastid membrane proteins in these traits has not been explored. RESULTS: Our genome-wide association study (GWAS) of 520 B. napu...
Autores principales: | , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8482660/ https://www.ncbi.nlm.nih.gov/pubmed/34587987 http://dx.doi.org/10.1186/s13068-021-02035-4 |
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author | Xiao, Zhongchun Tang, Fang Zhang, Liyuan Li, Shengting Wang, Shufeng Huo, Qiang Yang, Bo Zhang, Chao Wang, Daojie Li, Qing Wei, Lijuan Guo, Tao Qu, Cunmin Lu, Kun Zhang, Yanfeng Guo, Liang Li, Jiana Li, Nannan |
author_facet | Xiao, Zhongchun Tang, Fang Zhang, Liyuan Li, Shengting Wang, Shufeng Huo, Qiang Yang, Bo Zhang, Chao Wang, Daojie Li, Qing Wei, Lijuan Guo, Tao Qu, Cunmin Lu, Kun Zhang, Yanfeng Guo, Liang Li, Jiana Li, Nannan |
author_sort | Xiao, Zhongchun |
collection | PubMed |
description | BACKGROUND: In the oilseed crop Brassica napus (rapeseed), various metabolic processes influence seed oil content, oil quality, and biological yield. However, the role of plastid membrane proteins in these traits has not been explored. RESULTS: Our genome-wide association study (GWAS) of 520 B. napus accessions identified the chloroplast membrane protein-localized FATTY ACID EXPORTER 1-1 (FAX1-1) as a candidate associated with biological yield. Seed transcript levels of BnaFAX1-1 were higher in a cultivar with high seed oil content relative to a low-oil cultivar. BnaFAX1-1 was localized to the plastid envelope. When expressed in Arabidopsis thaliana, BnaFAX1-1 enhanced biological yield (total plant dry matter), seed yield and seed oil content per plant. Likewise, in the field, B. napus BnaFAX1-1 overexpression lines (BnaFAX1-1-OE) displayed significantly enhanced biological yield, seed yield, and seed oil content compared with the wild type. BnaFAX1-1 overexpression also up-regulated gibberellic acid 4 (GA4) biosynthesis, which may contribute to biological yield improvement. Furthermore, oleic acid (C18:1) significantly increased in BnaFAX1-1 overexpression seeds. CONCLUSION: Our results indicated that the putative fatty acid exporter BnaFAX1-1 may simultaneously improve seed oil content, oil quality and biological yield in B. napus, providing new approaches for future molecular breeding. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s13068-021-02035-4. |
format | Online Article Text |
id | pubmed-8482660 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-84826602021-10-04 The Brassica napus fatty acid exporter FAX1-1 contributes to biological yield, seed oil content, and oil quality Xiao, Zhongchun Tang, Fang Zhang, Liyuan Li, Shengting Wang, Shufeng Huo, Qiang Yang, Bo Zhang, Chao Wang, Daojie Li, Qing Wei, Lijuan Guo, Tao Qu, Cunmin Lu, Kun Zhang, Yanfeng Guo, Liang Li, Jiana Li, Nannan Biotechnol Biofuels Research BACKGROUND: In the oilseed crop Brassica napus (rapeseed), various metabolic processes influence seed oil content, oil quality, and biological yield. However, the role of plastid membrane proteins in these traits has not been explored. RESULTS: Our genome-wide association study (GWAS) of 520 B. napus accessions identified the chloroplast membrane protein-localized FATTY ACID EXPORTER 1-1 (FAX1-1) as a candidate associated with biological yield. Seed transcript levels of BnaFAX1-1 were higher in a cultivar with high seed oil content relative to a low-oil cultivar. BnaFAX1-1 was localized to the plastid envelope. When expressed in Arabidopsis thaliana, BnaFAX1-1 enhanced biological yield (total plant dry matter), seed yield and seed oil content per plant. Likewise, in the field, B. napus BnaFAX1-1 overexpression lines (BnaFAX1-1-OE) displayed significantly enhanced biological yield, seed yield, and seed oil content compared with the wild type. BnaFAX1-1 overexpression also up-regulated gibberellic acid 4 (GA4) biosynthesis, which may contribute to biological yield improvement. Furthermore, oleic acid (C18:1) significantly increased in BnaFAX1-1 overexpression seeds. CONCLUSION: Our results indicated that the putative fatty acid exporter BnaFAX1-1 may simultaneously improve seed oil content, oil quality and biological yield in B. napus, providing new approaches for future molecular breeding. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s13068-021-02035-4. BioMed Central 2021-09-29 /pmc/articles/PMC8482660/ /pubmed/34587987 http://dx.doi.org/10.1186/s13068-021-02035-4 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Xiao, Zhongchun Tang, Fang Zhang, Liyuan Li, Shengting Wang, Shufeng Huo, Qiang Yang, Bo Zhang, Chao Wang, Daojie Li, Qing Wei, Lijuan Guo, Tao Qu, Cunmin Lu, Kun Zhang, Yanfeng Guo, Liang Li, Jiana Li, Nannan The Brassica napus fatty acid exporter FAX1-1 contributes to biological yield, seed oil content, and oil quality |
title | The Brassica napus fatty acid exporter FAX1-1 contributes to biological yield, seed oil content, and oil quality |
title_full | The Brassica napus fatty acid exporter FAX1-1 contributes to biological yield, seed oil content, and oil quality |
title_fullStr | The Brassica napus fatty acid exporter FAX1-1 contributes to biological yield, seed oil content, and oil quality |
title_full_unstemmed | The Brassica napus fatty acid exporter FAX1-1 contributes to biological yield, seed oil content, and oil quality |
title_short | The Brassica napus fatty acid exporter FAX1-1 contributes to biological yield, seed oil content, and oil quality |
title_sort | brassica napus fatty acid exporter fax1-1 contributes to biological yield, seed oil content, and oil quality |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8482660/ https://www.ncbi.nlm.nih.gov/pubmed/34587987 http://dx.doi.org/10.1186/s13068-021-02035-4 |
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