Realizing the yield potential of Narrow Leaf 1 (NAL1) in rice: The way forward

IF 6.1 2区生物学 Q1 PLANT SCIENCES

Plant Physiology and Biochemistry Pub Date : 2025-05-04 DOI:10.1016/j.plaphy.2025.109982

Sivan Kalyani Velu , Bhavini Krishnan , Gayatri Venkataraman

{"title":"Realizing the yield potential of Narrow Leaf 1 (NAL1) in rice: The way forward","authors":"Sivan Kalyani Velu , Bhavini Krishnan , Gayatri Venkataraman","doi":"10.1016/j.plaphy.2025.109982","DOIUrl":null,"url":null,"abstract":"<div><div>Yield, a key parameter targeted by breeders to increase rice productivity is a complex trait, governed by source sink interactions and also subject to genotype x environmental effects. Over the last two decades, QTL mapping and map-based cloning have identified several loci and genes related to yield in rice. Among them, a variant of Narrow Leaf 1 (NAL1), a gene conferring pleiotropic effects in rice, has been inadvertently selected during domestication to enhance yield in japonica rice. In this review, we synthesize recent literature on NAL1 in rice, including molecular function, association with auxin transport, associated interactome, regulation at transcriptional and post-transcriptional levels that impact the narrow leaf phenotype. Causes of NAL1 pleiotropic effects are also examined, in addition to trade-offs between yield and photosynthesis conferred by distinct NAL1 variants. Finally, we suggest that the distinct allelic variants of NAL1, leading to partial or full functionality, found in indica and japonica rice backgrounds respectively integrate source-sink interactions to optimize rice yield in a given eco-physiological context. To realize the benefits of the fully functional NAL1 in conferring yield benefits under field conditions, genotype background is crucial and a systems approach is essential to elucidate the causes for such differences. The way forward to enhancing yield in japonica rice (with fully functional NAL1) further by introgression of additional sink and source traits from indica rice is outlined.</div></div>","PeriodicalId":20234,"journal":{"name":"Plant Physiology and Biochemistry","volume":"225 ","pages":"Article 109982"},"PeriodicalIF":6.1000,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plant Physiology and Biochemistry","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0981942825005108","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

Yield, a key parameter targeted by breeders to increase rice productivity is a complex trait, governed by source sink interactions and also subject to genotype x environmental effects. Over the last two decades, QTL mapping and map-based cloning have identified several loci and genes related to yield in rice. Among them, a variant of Narrow Leaf 1 (NAL1), a gene conferring pleiotropic effects in rice, has been inadvertently selected during domestication to enhance yield in japonica rice. In this review, we synthesize recent literature on NAL1 in rice, including molecular function, association with auxin transport, associated interactome, regulation at transcriptional and post-transcriptional levels that impact the narrow leaf phenotype. Causes of NAL1 pleiotropic effects are also examined, in addition to trade-offs between yield and photosynthesis conferred by distinct NAL1 variants. Finally, we suggest that the distinct allelic variants of NAL1, leading to partial or full functionality, found in indica and japonica rice backgrounds respectively integrate source-sink interactions to optimize rice yield in a given eco-physiological context. To realize the benefits of the fully functional NAL1 in conferring yield benefits under field conditions, genotype background is crucial and a systems approach is essential to elucidate the causes for such differences. The way forward to enhancing yield in japonica rice (with fully functional NAL1) further by introgression of additional sink and source traits from indica rice is outlined.

查看原文本刊更多论文

实现水稻窄叶1号（NAL1）的产量潜力：前进方向

产量是一个复杂的性状，受源库相互作用的支配，也受x基因型环境效应的影响，是育种家提高水稻产量的关键参数。在过去的二十年中，QTL定位和基于图谱的克隆已经确定了几个与水稻产量相关的位点和基因。其中，水稻多效基因窄叶1 （Narrow Leaf 1, NAL1）的一个变异在驯化过程中被无意中选择，从而提高了粳稻的产量。本文综述了NAL1在水稻中的分子功能、与生长素转运的关系、相关的相互作用、影响窄叶表型的转录和转录后调控等方面的最新研究进展。除了不同的NAL1变异所带来的产量和光合作用之间的权衡外，还研究了NAL1多效效应的原因。最后，我们认为NAL1在籼稻和粳稻中分别具有部分或全部功能的不同等位基因变异整合了源库相互作用，从而优化了给定生态生理条件下的水稻产量。为了实现全功能NAL1在田间条件下赋予产量效益的好处，基因型背景至关重要，必须采用系统方法来阐明这种差异的原因。概述了通过引入籼稻的其他库源性状进一步提高具有全功能NAL1的粳稻产量的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Plant Physiology and Biochemistry 生物-植物科学

CiteScore

11.10

自引率

3.10%

发文量

410

审稿时长

33 days

期刊介绍： Plant Physiology and Biochemistry publishes original theoretical, experimental and technical contributions in the various fields of plant physiology (biochemistry, physiology, structure, genetics, plant-microbe interactions, etc.) at diverse levels of integration (molecular, subcellular, cellular, organ, whole plant, environmental). Opinions expressed in the journal are the sole responsibility of the authors and publication does not imply the editors'' agreement. Manuscripts describing molecular-genetic and/or gene expression data that are not integrated with biochemical analysis and/or actual measurements of plant physiological processes are not suitable for PPB. Also "Omics" studies (transcriptomics, proteomics, metabolomics, etc.) reporting descriptive analysis without an element of functional validation assays, will not be considered. Similarly, applied agronomic or phytochemical studies that generate no new, fundamental insights in plant physiological and/or biochemical processes are not suitable for publication in PPB. Plant Physiology and Biochemistry publishes several types of articles: Reviews, Papers and Short Papers. Articles for Reviews are either invited by the editor or proposed by the authors for the editor''s prior agreement. Reviews should not exceed 40 typewritten pages and Short Papers no more than approximately 8 typewritten pages. The fundamental character of Plant Physiology and Biochemistry remains that of a journal for original results.