Gene mapping and candidate gene analysis of multi-floret spikelet 3 (mfs3) in rice (Oryza sativa L.)

Zheng, Hao; Zhang, Jun; Zhuang, Hui; Zeng, Xiaoqin; Tang, Jun; Wang, Honglei; Chen, Huan; Li, Yan; Ling, Yinghua; He, Guanghua; Li, Yunfeng

doi:10.1016/s2095-3119(19)62652-3

Cited by 10 publications

(10 citation statements)

References 23 publications

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“…However, our intense efforts using either map-based cloning or bulked-segregant analysis (BSA) by generating large populations or different crosses could only locate the locus to the ~22.85- to 23.85-Mb (megabase) region on chromosome 6 (fig. S6), like previously reported attempts ( 21 – 24 ). One possibility is that there exist complex chromosome structural variations around the region.…”

Section: Resultssupporting

confidence: 87%

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Enhancing rice panicle branching and grain yield through tissue-specific brassinosteroid inhibition

Zhang,

Meng,

Liu

et al. 2024

Science

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Crop yield potential is constrained by the inherent trade-offs among traits such as between grain size and number. Brassinosteroids (BRs) promote grain size, yet their role in regulating grain number is unclear. By deciphering the clustered-spikelet rice germplasm, we show that activation of the BR catabolic gene BRASSINOSTEROID-DEFICIENT DWARF3 ( BRD3 ) markedly increases grain number. We establish a molecular pathway in which the BR signaling inhibitor GSK3/SHAGGY-LIKE KINASE2 phosphorylates and stabilizes OsMADS1 transcriptional factor, which targets TERMINAL FLOWER1 -like gene RICE CENTRORADIALIS2 . The tissue-specific activation of BRD3 in the secondary branch meristems enhances panicle branching, minimizing negative effects on grain size, and improves grain yield. Our study showcases the power of tissue-specific hormonal manipulation in dismantling the trade-offs among various traits and thus unleashing crop yield potential in rice.

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Section: Resultssupporting

confidence: 87%

“…Owing to its potential for improving grain productivity, researchers have made numerous efforts to identify and clone the gene ( CL ) responsible for this trait. Although several studies have successfully mapped the CL locus to a specific region on chromosome 6 ( 20 – 24 ), the gene itself has eluded cloning attempts, for reasons that are unclear.…”

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confidence: 99%

Enhancing rice panicle branching and grain yield through tissue-specific brassinosteroid inhibition

Zhang,

Meng,

Liu

et al. 2024

Science

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“…This trait is different from the multilocular phenotype in Brassica plants, such as tetra-locular Brassica rapa (Yadava et al, 2014;Lee et al, 2018), multilocular Brassica juncea (Xiao et al, 2013;Xu et al, 2014), etc., which increases the number of locules in a silique. However, similar phenomena described as "multi-pistil" have been reported in wheat (Triticum aestivum) (Yang et al, 2011(Yang et al, , 2017Duan et al, 2015;Wei, 2017;Guo et al, 2019;Zhu et al, 2019;Yu et al, 2020), rice (Oryza sativa) (Zheng et al, 2019), sweet cherry (Prunus avium) (Liu et al, 2019;Wang et al, 2019), and alfalfa (Medicago sativa) (Nair et al, 2008). In wheat, increasing the number of grains per spike is considered to be vital for maximizing its yield potential (Wei, 2017;Zhu et al, 2019;Yu et al, 2020).…”

Section: Introductionmentioning

confidence: 61%

Investigation of Thermomorphogenesis-Related Genes for a Multi-Silique Trait in Brassica napus by Comparative Transcriptome Analysis

Chai

Zhang

et al. 2021

Front. Genet.

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In higher plants, the structure of a flower is precisely controlled by a series of genes. An aberrance flower results in abnormal fruit morphology. Previously, we reported multi-silique rapeseed (Brassica napus) line zws-ms. We identified two associated regions and investigated differentially expressed genes (DEGs); thus, some candidate genes underlying the multi-silique phenotype in warm area Xindu were selected. However, this phenotype was switched off by lower temperature, and the responsive genes, known as thermomorphogenesis-related genes, remained elusive. So, based on that, in this study, we further investigated the transcriptome data from buds of zws-ms and its near-isogenic line zws-217 grown in colder area Ma’erkang, where both lines showed normal siliques only, and the DEGs between them analyzed. We compared the 129 DEGs from Xindu to the 117 ones from Ma’erkang and found that 33 of them represented the same or similar expression trends, whereas the other 96 DEGs showed different expression trends, which were defined as environment-specific. Furthermore, we combined this with the gene annotations and ortholog information and then selected BnaA09g45320D (chaperonin gene CPN10-homologous) and BnaC08g41780D [Seryl-tRNA synthetase gene OVULE ABORTION 7 (OVA7)-homologous] the possible thermomorphogenesis-related genes, which probably switched off the multi-silique under lower temperature. This study paves a way to a new perspective into flower/fruit development in Brassica plants.

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“…Ren et al (2019) reported that the fon4 mutants produced a variable number of multi-floret spikelet, indicating that the mutation of different nucleotides in fon4 results in variable effects on its ability to control the spikelet determinacy, thereby producing more and less multi-floret spikelet. Zheng et al (2019) also reported that the number of floral organs increased in some spikelets including multi-floret (grain) spikelet, which meant that the spikelet determinacy was lost to some degree in mfs3. Multi-floret spikelets have the potential value in rice breeding to increase grain number per panicle, thereby increasing rice yield (Zhang et al 2017, Ren et al 2018.…”

Section: Resultsmentioning

confidence: 99%

“…It can be used as a potential genetic resource for further breeding programme to ensure the food security in future (Ren et al 2018). Although the genetic/molecular basis of multiple florets(/grains) spikelets development in rice has been described since long ago (Parthasarathy 1936, Morinaga and Tajiri 1941, Kasahara 1944, Li et al 2007, Mitra et al 2017, Zhang et al 2017, Ren et al 2019, Zheng et al 2019, reports on morphology and/or developmental anatomy are scanty (Nasiruddin 1963, Shimizu and Kuno 1966, Sarwar and Chanda 2018. Moreover, multiple-seeded rice sometime identified as a separate species of Oryza, O. plena (Prain) Chowdhury (Chowdhury 1949).…”

Section: Introductionmentioning

confidence: 99%

Effects of potassium on panicle structure and spikelet morphology of a double grained rice cultivar

Sarwar

Mridul

Chanda³

et al. 2020

Bangladesh J. Bot.

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Influence of K on panicle structure and spikelet morphology of a double grained rice cultivar was evaluated. Results showed that K enhanced the plant height, leaf number, yield and yield contributing descriptors in double grained rice cultivar. The ratio of single-double grained spikelets on a panicle varied from 70 : 30 to 59 : 41. The position of spikelets on a panicle viz. primary vs. secondary branch, middle vs. upper or lower portion of panicle, had little effect on single-double grain ratio. However, K significantly affected the single-double grained spikelet ratio between primary and secondary branches. Multi-grained spikelets showed the potential to increase grain number per panicle thereby increasing rice yield.

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Gene mapping and candidate gene analysis of multi-floret spikelet 3 (mfs3) in rice (Oryza sativa L.)

Cited by 10 publications

References 23 publications

Enhancing rice panicle branching and grain yield through tissue-specific brassinosteroid inhibition

Enhancing rice panicle branching and grain yield through tissue-specific brassinosteroid inhibition

Investigation of Thermomorphogenesis-Related Genes for a Multi-Silique Trait in Brassica napus by Comparative Transcriptome Analysis

Effects of potassium on panicle structure and spikelet morphology of a double grained rice cultivar

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