OsNAC129 Regulates Seed Development and Plant Growth and Participates in the Brassinosteroid Signaling Pathway

Jin, Sukui; Zhang, Mingqiu; Leng, Yujia; Xu, Lina; Jia, Shuwen; Wang, Shuilian; Song, Tao; Wang, Ruo-An; Yang, Qingqing; Tao, Tao; Cai, Xin-Zhong; Gao, Jinliang

doi:10.3389/fpls.2022.905148

Cited by 14 publications

(7 citation statements)

References 89 publications

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“…Recently, many genes were reported to regulate grain size by participating in multiple phytohormone signaling pathways, such as GA, brassinosteroid (BR), and auxin ( Gao et al 2018 , 2021 ; Duan et al 2020 ; Jin et al 2022 ). GNP1 encodes GA 20-oxidase 1, which promotes cytokinin activity during the dynamic regulation of the KNOX protein, increasing grain number and yield in rice ( Wu et al 2016 ).…”

Section: Discussionmentioning

confidence: 99%

Natural allelic variation in GRAIN SIZE AND WEIGHT 3 of wild rice regulates the grain size and weight

Bai

Cai

et al. 2023

Plant Physiology

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Grain size is important for yield in rice (Oryza sativa L.). Although many genes involved in grain size have been isolated, few can be used in breeding due to their interactions and phenotypic effects. Here, we describe natural variation in the granule-type quantitative trait locus GRAIN SIZE AND WEIGHT 3 (GSW3) located on chromosome 3 in wild rice (Oryza rufipogon Griff.) that encodes a GTPase-regulated protein and negatively regulates grain length, grain width, and 1,000-grain weight. The insertion of a 232-bp fragment of the genomic sequence in the wild rice, a natural allelic variant gene (GSW3), increased the expression levels and reduced the grain length and width and 1,000-grain weight. Knockout of GSW3 in the wild rice inbred line Huaye 3 increased the grain length and width and 1,000-grain weight. Introducing GSW3Huaye3 into cultivated rice line KJ01 and overexpressing GSW3Huaye3 in Huaye 3 resulted in reduced grain length and width and 1,000-grain weight, and grain size and 1,000-grain weight changes were closely related to GSW3 expression levels. GSW3 regulated the grain length and width simultaneously by promoting grain glume cell division and longitudinal and transverse cell growth. GSW3 was also involved in regulating the gibberellic acid signaling pathway and negatively regulated plant growth. Furthermore, a critical SNP in the GSW3 coding region was obviously correlated with grain size variation in a core collection of cultivated rice. This SNP resulted in an amino acid substitution from Gln to Arg at position 161 in GSW3, which reduced the grain size. Our study shows that GSW3 negatively regulates the grain shape, which could explain different grain shapes in modern cultivars and wild rice. GSW3 may also be used for breeding rice varieties with improved grain shapes and higher yield.

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Section: Discussionmentioning

confidence: 99%

Natural allelic variation in GRAIN SIZE AND WEIGHT 3 of wild rice regulates the grain size and weight

Bai

Cai

et al. 2023

Plant Physiology

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“…Transgenic rice overexpressing an OsNAC2 mutant ( OErN ) have better plant architecture and longer panicles, and produce more grains [ 51 ]. In rice, loss of function of OsNAC129 was found to significantly increase grain length, weight, apparent amylose content (AAC), and plant height, while overexpression of OsNAC129 had the opposite effect [ 52 ]. The expression of OsNAC129 was induced by ABA, and overexpression of OsNAC129 in plants reduced sensitivity to exogenous BR, indicating that OsNAC129 negatively regulates seed development and plant growth and participates in the BR signaling pathway.…”

Section: Transcriptional Regulators Pathwaymentioning

confidence: 99%

Molecular Network for Regulation of Seed Size in Plants

Zhang

Zhou

Liu

et al. 2023

IJMS

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The size of seeds is particularly important for agricultural development, as it is a key trait that determines yield. It is controlled by the coordinated development of the integument, endosperm, and embryo. Large seeds are an important way of improving the ultimate “sink strength” of crops, providing more nutrients for early plant growth and showing certain tolerance to abiotic stresses. There are several pathways for regulating plant seed size, including the HAIKU (IKU) pathway, ubiquitin–proteasome pathway, G (Guanosine triphosphate) protein regulatory pathway, mitogen-activated protein kinase (MAPK) pathway, transcriptional regulators pathway, and phytohormone regulatory pathways including the auxin, brassinosteroid (BR), gibberellin (GA), jasmonic acid (JA), cytokinin (CK), Abscisic acid (ABA), and microRNA (miRNA) regulatory pathways. This article summarizes the seed size regulatory network and prospective ways of improving yield. We expect that it will provide a valuable reference to researchers in related fields.

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“…Additionally, loss of function of OsNAC129 was found to significantly increase grain length, weight, apparent amylose content (AAC), and plant height, while overexpression of OsNAC129 had the opposite effect. The expression of OsNAC129 was linked to induced by ABA, and overexpression of OsNAC129 in plants reduced sensitivity to exogenous BR, thereby indicating that overexpression of OsNAC129 negatively regulates seed development and plant growth and participates in the BR signaling pathway ( Jin et al., 2022 ). In addition, studies demonstrated that the DREB-type transcription factor gene GmDREBL is essential for seed oil accumulation ( Zhang et al., 2016b ).…”

Section: Molecular Network Regulating Seed Sizementioning

confidence: 99%

Molecular, genetic, and genomic basis of seed size and yield characteristics in soybean

Tayade,

Imran,

Ghimire

et al. 2023

Front. Plant Sci.

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Soybean (Glycine max L. Merr.) is a crucial oilseed cash crop grown worldwide and consumed as oil, protein, and food by humans and feed by animals. Comparatively, soybean seed yield is lower than cereal crops, such as maize, rice, and wheat, and the demand for soybean production does not keep up with the increasing consumption level. Therefore, increasing soybean yield per unit area is the most crucial breeding objective and is challenging for the scientific community. Moreover, yield and associated traits are extensively researched in cereal crops, but little is known about soybeans’ genetics, genomics, and molecular regulation of yield traits. Soybean seed yield is a complex quantitative trait governed by multiple genes. Understanding the genetic and molecular processes governing closely related attributes to seed yield is crucial to increasing soybean yield. Advances in sequencing technologies have made it possible to conduct functional genomic research to understand yield traits’ genetic and molecular underpinnings. Here, we provide an overview of recent progress in the genetic regulation of seed size in soybean, molecular, genetics, and genomic bases of yield, and related key seed yield traits. In addition, phytohormones, such as auxin, gibberellins, cytokinins, and abscisic acid, regulate seed size and yield. Hence, we also highlight the implications of these factors, challenges in soybean yield, and seed trait improvement. The information reviewed in this study will help expand the knowledge base and may provide the way forward for developing high-yielding soybean cultivars for future food demands.

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OsNAC129 Regulates Seed Development and Plant Growth and Participates in the Brassinosteroid Signaling Pathway

Cited by 14 publications

References 89 publications

Natural allelic variation in GRAIN SIZE AND WEIGHT 3 of wild rice regulates the grain size and weight

Natural allelic variation in GRAIN SIZE AND WEIGHT 3 of wild rice regulates the grain size and weight

Molecular Network for Regulation of Seed Size in Plants

Molecular, genetic, and genomic basis of seed size and yield characteristics in soybean

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