<i>SLL1-ZH</i> Regulates Spikelets Architecture and Grain Yield in Rice

The spikelet developmental processes that control structure and floral organ identity play critical roles in rice grain yield formation. In this study, we characterized a novel rice mutant, <i>SLL1-ZH</i>, which exhibits a variety of defective agronomic characters, including semi-dwarf,...

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Autores principales:	Lianping Sun, Jingxin Wang, Xiaoxia Wen, Zequn Peng, Daibo Chen, Yingxin Zhang, Shihua Cheng, Liyong Cao, Xiaodeng Zhan
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	rice grain yield floral organ <i>SLL1-ZH</i> map-based cloning Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/6e96062101aa434babf6c23313a5cd00
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id	oai:doaj.org-article:6e96062101aa434babf6c23313a5cd00
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spelling	oai:doaj.org-article:6e96062101aa434babf6c23313a5cd002021-11-25T16:01:30Z<i>SLL1-ZH</i> Regulates Spikelets Architecture and Grain Yield in Rice10.3390/agriculture111111622077-0472https://doaj.org/article/6e96062101aa434babf6c23313a5cd002021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0472/11/11/1162https://doaj.org/toc/2077-0472The spikelet developmental processes that control structure and floral organ identity play critical roles in rice grain yield formation. In this study, we characterized a novel rice mutant, <i>SLL1-ZH</i>, which exhibits a variety of defective agronomic characters, including semi-dwarf, rolling leaf, deformed panicles, and reduced grains production. Morphological analysis also revealed that the <i>SLL1-ZH</i> mutant shows numerous defects of floral organs, such as cracked glumes, hooked and thin lemmas, shrunken but thickened paleas, an indeterminate number of stamens and stigmas, and heterotopic ovaries. Map-based cloning identified a single nucleotide substitution (C to G) in the first exon of <i>LOC_Os09g23200</i> that is responsible for the <i>SLL1-ZH</i> phenotype. In addition, qPCR analysis showed a significant change in the relative expression of <i>SLL1-ZH</i> in the mutant during inflorescence differentiation and in the different floral organs. Transcription of rice floral organ development-related factors also changed significantly in the mutant. Therefore, our results suggested that <i>SLL1-ZH</i> plays a great role in plant growth, spikelet development, and grain yield in rice.Lianping SunJingxin WangXiaoxia WenZequn PengDaibo ChenYingxin ZhangShihua ChengLiyong CaoXiaodeng ZhanMDPI AGarticlericegrain yieldfloral organ<i>SLL1-ZH</i>map-based cloningAgriculture (General)S1-972ENAgriculture, Vol 11, Iss 1162, p 1162 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	rice grain yield floral organ <i>SLL1-ZH</i> map-based cloning Agriculture (General) S1-972
spellingShingle	rice grain yield floral organ <i>SLL1-ZH</i> map-based cloning Agriculture (General) S1-972 Lianping Sun Jingxin Wang Xiaoxia Wen Zequn Peng Daibo Chen Yingxin Zhang Shihua Cheng Liyong Cao Xiaodeng Zhan <i>SLL1-ZH</i> Regulates Spikelets Architecture and Grain Yield in Rice
description	The spikelet developmental processes that control structure and floral organ identity play critical roles in rice grain yield formation. In this study, we characterized a novel rice mutant, <i>SLL1-ZH</i>, which exhibits a variety of defective agronomic characters, including semi-dwarf, rolling leaf, deformed panicles, and reduced grains production. Morphological analysis also revealed that the <i>SLL1-ZH</i> mutant shows numerous defects of floral organs, such as cracked glumes, hooked and thin lemmas, shrunken but thickened paleas, an indeterminate number of stamens and stigmas, and heterotopic ovaries. Map-based cloning identified a single nucleotide substitution (C to G) in the first exon of <i>LOC_Os09g23200</i> that is responsible for the <i>SLL1-ZH</i> phenotype. In addition, qPCR analysis showed a significant change in the relative expression of <i>SLL1-ZH</i> in the mutant during inflorescence differentiation and in the different floral organs. Transcription of rice floral organ development-related factors also changed significantly in the mutant. Therefore, our results suggested that <i>SLL1-ZH</i> plays a great role in plant growth, spikelet development, and grain yield in rice.
format	article
author	Lianping Sun Jingxin Wang Xiaoxia Wen Zequn Peng Daibo Chen Yingxin Zhang Shihua Cheng Liyong Cao Xiaodeng Zhan
author_facet	Lianping Sun Jingxin Wang Xiaoxia Wen Zequn Peng Daibo Chen Yingxin Zhang Shihua Cheng Liyong Cao Xiaodeng Zhan
author_sort	Lianping Sun
title	<i>SLL1-ZH</i> Regulates Spikelets Architecture and Grain Yield in Rice
title_short	<i>SLL1-ZH</i> Regulates Spikelets Architecture and Grain Yield in Rice
title_full	<i>SLL1-ZH</i> Regulates Spikelets Architecture and Grain Yield in Rice
title_fullStr	<i>SLL1-ZH</i> Regulates Spikelets Architecture and Grain Yield in Rice
title_full_unstemmed	<i>SLL1-ZH</i> Regulates Spikelets Architecture and Grain Yield in Rice
title_sort	<i>sll1-zh</i> regulates spikelets architecture and grain yield in rice
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6e96062101aa434babf6c23313a5cd00
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<i>SLL1-ZH</i> Regulates Spikelets Architecture and Grain Yield in Rice

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