Genome wide screening and comparative genome analysis for Meta-QTLs, ortho-MQTLs and candidate genes controlling yield and yield-related traits in rice. Flower number per panicle is one of the most important traits in rice productivity determination. Tiller number is one of the most important agronomic traits that determine rice (Oryza sativa) yield. 2020 Jan;225(1):356-375. doi: 10.1111/nph.16133. Since the gene MONOCULM 1 (MOC 1) was first characterized as a key regulator in controlling rice tillering and branching, great p …. 2011 Feb;14(1):94-9. doi: 10.1016/j.pbi.2010.11.002. 2019 Nov;39(7):904-923. doi: 10.1080/07388551.2019.1632257. OUR PRODUCT RANGE.  |  Controlling the trade-off between spikelet number and grain filling: the hierarchy of starch synthesis in spikelets of rice panicle in relation to hormone dynamics. 2020 Apr 9;10(4):1197-1212. doi: 10.1534/g3.119.400612. Haaning AM, Smith KP, Brown-Guedira GL, Chao S, Tyagi P, Muehlbauer GJ. In this study, we report the isolation and functional characterization of a panicle abortion mutant named panicle apical abortion1-1 (paab1-1). paab1-1 exhibits degeneration of spikelets on the apical portion of panicles during late stage of panicle development. 2013), where PN is associated with the number of tillers and GN with panicle branching. Int J Mol Sci. Panicle : F in ally, I ask a l l rice f a rm ers located in the same region to plant their rice at the same time, because larger areas of land with rice that ripens at the same time will have less damage. 2020 Apr 10;21(1):294. doi: 10.1186/s12864-020-6702-1. Brian Dunn, Research Agronomist, NSW DPI, Yanco. In 2011, APHIS reclassified panicle rice mite (Steneotarsonemus spinki, PRM) to a non-quarantine pest. Inheritance of panicle exsertion in rice 503 Sci. Front Plant Sci. 2019 May;31(5):1026-1042. doi: 10.1105/tpc.19.00023. NIH An entire lifecycle can be completed in 7-21 days depending on temperature. (A) Fine mapping of paab1-1 . Active growth of tiller bud (TB) requires high amount of mineral nutrients, however, the mechanism underlying the distribution of mineral nutrients to TB with low transpiration is unknown. (A) A representative…, NLM Get the latest public health information from CDC: https://www.coronavirus.gov, Get the latest research information from NIH: https://www.nih.gov/coronavirus, Find NCBI SARS-CoV-2 literature, sequence, and clinical content: https://www.ncbi.nlm.nih.gov/sars-cov-2/. 2013 Oct;25(10):3743-59. doi: 10.1105/tpc.113.113639. Institute of Plant Science and Resources, Okayama University, Chuo 2‐20‐1, Kurashiki, 710‐0046 Japan. Panicle size is a critical determinant of grain yield in rice (Oryza sativa) and other grain crops. 2020 Feb 14;10:1752. doi: 10.3389/fpls.2019.01752. Panicle rice mites cause damage to plants by directly feeding on leaf tissue in the leaf sheath and developing grains at the milk stage, and indirectly, by transmitting fungal pathogens. Although the low ability of smosl to produce tillers was not fully reversed in LRC1, this was however compensated by an increased grain weight per panicle , thereby achieving high grain yield per plant in the latter (Fig. In general, indica rice has a long and sparse panicle, whereas japonica rice has a short and dense panicle, which questions whether there is a diverse genetic basis of panicle architecture between indica and japonica rice. Int J Mol Sci. (A)…, OsALMT7-Mediated Outward Currents and Anion…, OsALMT7-Mediated Outward Currents and Anion Selectivity of OsALMT7 in X. laevis Oocytes. Many environmental factors could induce or suppress florigen expression. They vary among genotypes and are prone to Genotype x Environment interactions. The methods that are currently used to count the number of grains per panicle are manually conducted, making them labor intensive and time consuming. Consistent with a function for OsALMT7 as a malate transporter, the panicle of the paab1-1 mutant contained less malate than the wild type, particularly at the apical portions, and injection of malate into the paab1-1 panicle could alleviate the spikelet degeneration phenotype. In rice panicle development, new meristems are generated sequentially in an organized manner and acquire their identity in a time- and position-dependent manner. (A)…, Malate Content Is Decreased in the paab1-1 Panicle. COVID-19 is an emerging, rapidly evolving situation. Nitrogen fertilizer enhances local cytokinin synthesis to increase flower numbers in the panicles of rice.  |  Summary Degeneration of apical spikelets and reduced panicle fertility are common reasons for low seed‐setting rate in rice (Oryza sativa). J Plant Physiol. Photoperiod (day length) is the most important environmental factor affecting flow… Search for more papers by this author. It is determined by the interaction of endogenous signals and environmental factors. COVID-19 is an emerging, rapidly evolving situation. Rice plants can be infested throughout the entire year. OsSHI1 Regulates Plant Architecture Through Modulating the Transcriptional Activity of IPA1 in Rice. Epub 2010 Dec 6. Rice (Oryza sativa L.) is one of the most important staple food crops in the world, and rice tillering and panicle branching are important traits determining grain yield. Get the latest public health information from CDC: https://www.coronavirus.gov, Get the latest research information from NIH: https://www.nih.gov/coronavirus, Find NCBI SARS-CoV-2 literature, sequence, and clinical content: https://www.ncbi.nlm.nih.gov/sars-cov-2/. Epub 2019 Sep 30. Sekhar S, Panda BB, Mohapatra T, Das K, Shaw BP, Kariali E, Mohapatra PK. Curr Opin Plant Biol. The mites have been associated with sheath rot as well as bacterial panicle blight. (A) Gross morphology of an adult paab1-1 plant,…, Degeneration of Top Spikelets Occurs at Late Stages of Panicle Development in paab1-1…, Cell Death-Related Events Are Triggered in paab1-1 . eCollection 2020. The mites can carry sheath rot spores on their body. The molecular…, Expression Pattern and Subcellular Localization…, Expression Pattern and Subcellular Localization of the OsALMT7 Protein. All rights reserved. Since the gene MONOCULM 1 (MOC 1) was first characterized as a key regulator in controlling rice tillering and branching, great progress has been achieved in identifying important genes associated with grain yield, elucidating the genetic basis of yield-related traits. Miura K, Ikeda M, Matsubara A, Song XJ, Ito M, Asano K, Matsuoka M, Kitano H, Ashikari M. Nat Genet. National Center for Biotechnology Information, Unable to load your collection due to an error, Unable to load your delegates due to an error, Degeneration of Top Spikelets Occurs at Late Stages of Panicle Development in, Cell Death-Related Events Are Triggered in. Epub 2010 May 23. APHIS’ decision to reclassify PRM is based on a reevaluation of the regulatory program, outreach activities conducted with the rice-producing states, and scientific literature indicating that PRM has not caused economic damage in temperate rice-growing regions similar to the United States. Adult panicle rice mites are clear to straw-colored, oval in shape and approximately 1/100 of an inch long. Phytohormone-Mediated Molecular Mechanisms Involving Multiple Genes and QTL Govern Grain Number in Rice. USA.gov. During feeding, they inject a toxic saliva. Epub 2019 Oct 18. 2016). Plant Cell. KNOW MORE . OsALMT7-Mediated Outward Currents and Anion Selectivity of OsALMT7 in. 2019 Apr 1;20(7):1613. doi: 10.3390/ijms20071613. Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). Therefore, both panicle structure and grain shape are important agronomic traits related to grain yield (Wu et al. What is Panicle Initiation? 2019). G3 (Bethesda). In this study, LMM were used to perform a GWAS analysis. Panicle initiation (PI) is a growth stage that represents the start of the reproductive phase in rice development. Duan E, Wang Y, Li X, Lin Q, Zhang T, Wang Y, Zhou C, Zhang H, Jiang L, Wang J, Lei C, Zhang X, Guo X, Wang H, Wan J. Eggs are clear in color, oval-shaped, and about 1/3 the size of adults. Rice is a very flexible/adaptable plant that grows well under both flooded and rainfed conditions. The rice plant has round and hollow stems, flat leaves, and panicles at the top of the plant. Image of food, panicle, crop - 106889718 MOC1 encodes a putative GRAS family nuclear protein that regulates AM formation. Alternative splicing of a barley gene results in an excess-tillering and semi-dwarf mutant. 2020 Jan;133(1):163-177. doi: 10.1007/s00122-019-03448-4. Tina Dunn, Technical Officer, NSW DPI, Yanco . The number of flowers is established in the early stages of panicle development. Together, these results suggest that OsALMT7-mediated transport of malate into the apical portion of panicle is required for normal panicle development, thus highlighting a key role of malate in maintaining the sink size and grain yield in rice and probably other grain crops. A panicle is a much-branched inflorescence. (Zhang et al., 2010). We investigated eight panicle architecture traits Together with panicle number, panicle architecture determines sink-based yield potential. ), v.65, n.5, p.502-507, September/October 2008 explained a small portion of the variation on this trait (Oh et al., 2004), discarding the involvement of ma-jor genes in panicle exsertion. Natural Genetic Variation Underlying Tiller Development in Barley (. Role of brassinosteroids in rice spikelet differentiation and degeneration under soil-drying during panicle development. Epub 2015 Mar 14. Hua W, Tan C, Xie J, Zhu J, Shang Y, Yang J, Zhang XQ, Wu X, Wang J, Li C. Theor Appl Genet. Deveshwar P, Prusty A, Sharma S, Tyagi AK. Genome-wide binding analysis of the transcription activator ideal plant architecture1 reveals a complex network regulating rice plant architecture. Transcriptomic and Co-Expression Network Profiling of Shoot Apical Meristem Reveal Contrasting Response to Nitrogen Rate between. 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