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Dissecting of the Deterioration in Eating Quality for Erect Panicle (Ep) Type High Yield Japonica Super Rice in Northest China

Ep type is an important morphological improvement (following dwarf breeding and ideal plant type) that has contributed to breeding super-high yielding, and shows a pleiotropic effect in increasing grain yield and also nitrogen-use efficiency (NUE) in rice. Nevertheless, it remains unclear whether Ep...

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Autores principales: Chen, Sibo, Chen, Shuangjie, Jiang, Yihui, Lu, Qing, Liu, Zhongyuan, Liu, Wanying, Wang, Xuhong, Shi, Wenhua, Xu, Quan, Sun, Jian, Zhang, Fan, Tang, Liang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8901826/
https://www.ncbi.nlm.nih.gov/pubmed/35257269
http://dx.doi.org/10.1186/s12284-022-00561-9
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author Chen, Sibo
Chen, Shuangjie
Jiang, Yihui
Lu, Qing
Liu, Zhongyuan
Liu, Wanying
Wang, Xuhong
Shi, Wenhua
Xu, Quan
Sun, Jian
Zhang, Fan
Tang, Liang
author_facet Chen, Sibo
Chen, Shuangjie
Jiang, Yihui
Lu, Qing
Liu, Zhongyuan
Liu, Wanying
Wang, Xuhong
Shi, Wenhua
Xu, Quan
Sun, Jian
Zhang, Fan
Tang, Liang
author_sort Chen, Sibo
collection PubMed
description Ep type is an important morphological improvement (following dwarf breeding and ideal plant type) that has contributed to breeding super-high yielding, and shows a pleiotropic effect in increasing grain yield and also nitrogen-use efficiency (NUE) in rice. Nevertheless, it remains unclear whether Ep has adverse effects on eating quality and how it affects nitrogen uptake and assimilation. In this study, we developed a pair of near-isogenic lines (NILs) for panicle type (NIL-Ep, NIL-non Ep) in the Liaogeng 5 (LG5) and Akihikari (AKI) backgrounds. Rice plants of the NIL-Ep had higher grain numbers per panicle in the middle to bottom spike positions than plants of the NIL-non Ep. The increased grain number is not only is the key factor leading to increased yield but also is the reason for reduced the eating quality. The content of prolamin and glutelin was significantly higher in NIL-Ep, which resulted in higher hardness and worse viscosity of rice after cooking. In addition, the activity of several essential enzymes catalyzing nitrogen metabolism was higher in the NIL-Ep line grains than in the NIL-non Ep, especially from the mid to late grain filling stage. Based on these results, we conclude that Ep positively regulates grain protein accumulation, primarily through enhancing the activity of enzymes involved in nitrogen assimilation and redistribution during the mid to late grain-filling stage, resulting in excessive accumulation of grain protein and decreased eating quality. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12284-022-00561-9.
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spelling pubmed-89018262022-03-15 Dissecting of the Deterioration in Eating Quality for Erect Panicle (Ep) Type High Yield Japonica Super Rice in Northest China Chen, Sibo Chen, Shuangjie Jiang, Yihui Lu, Qing Liu, Zhongyuan Liu, Wanying Wang, Xuhong Shi, Wenhua Xu, Quan Sun, Jian Zhang, Fan Tang, Liang Rice (N Y) Research Ep type is an important morphological improvement (following dwarf breeding and ideal plant type) that has contributed to breeding super-high yielding, and shows a pleiotropic effect in increasing grain yield and also nitrogen-use efficiency (NUE) in rice. Nevertheless, it remains unclear whether Ep has adverse effects on eating quality and how it affects nitrogen uptake and assimilation. In this study, we developed a pair of near-isogenic lines (NILs) for panicle type (NIL-Ep, NIL-non Ep) in the Liaogeng 5 (LG5) and Akihikari (AKI) backgrounds. Rice plants of the NIL-Ep had higher grain numbers per panicle in the middle to bottom spike positions than plants of the NIL-non Ep. The increased grain number is not only is the key factor leading to increased yield but also is the reason for reduced the eating quality. The content of prolamin and glutelin was significantly higher in NIL-Ep, which resulted in higher hardness and worse viscosity of rice after cooking. In addition, the activity of several essential enzymes catalyzing nitrogen metabolism was higher in the NIL-Ep line grains than in the NIL-non Ep, especially from the mid to late grain filling stage. Based on these results, we conclude that Ep positively regulates grain protein accumulation, primarily through enhancing the activity of enzymes involved in nitrogen assimilation and redistribution during the mid to late grain-filling stage, resulting in excessive accumulation of grain protein and decreased eating quality. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12284-022-00561-9. Springer US 2022-03-08 /pmc/articles/PMC8901826/ /pubmed/35257269 http://dx.doi.org/10.1186/s12284-022-00561-9 Text en © The Author(s) 2022, corrected publication 2022 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/) .
spellingShingle Research
Chen, Sibo
Chen, Shuangjie
Jiang, Yihui
Lu, Qing
Liu, Zhongyuan
Liu, Wanying
Wang, Xuhong
Shi, Wenhua
Xu, Quan
Sun, Jian
Zhang, Fan
Tang, Liang
Dissecting of the Deterioration in Eating Quality for Erect Panicle (Ep) Type High Yield Japonica Super Rice in Northest China
title Dissecting of the Deterioration in Eating Quality for Erect Panicle (Ep) Type High Yield Japonica Super Rice in Northest China
title_full Dissecting of the Deterioration in Eating Quality for Erect Panicle (Ep) Type High Yield Japonica Super Rice in Northest China
title_fullStr Dissecting of the Deterioration in Eating Quality for Erect Panicle (Ep) Type High Yield Japonica Super Rice in Northest China
title_full_unstemmed Dissecting of the Deterioration in Eating Quality for Erect Panicle (Ep) Type High Yield Japonica Super Rice in Northest China
title_short Dissecting of the Deterioration in Eating Quality for Erect Panicle (Ep) Type High Yield Japonica Super Rice in Northest China
title_sort dissecting of the deterioration in eating quality for erect panicle (ep) type high yield japonica super rice in northest china
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8901826/
https://www.ncbi.nlm.nih.gov/pubmed/35257269
http://dx.doi.org/10.1186/s12284-022-00561-9
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