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Dissertations / Theses on the topic 'OsMADS4'

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Published: 6 September 2023

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1

Gregis, V. "Analisi comparata del controllo molecolare dell'induzione alla fioritura: ruolo dei geni OsMADS22/OsMADS47 e SVP/AGL24 rispettivamente in riso e Arabidopsis." Doctoral thesis, Università degli Studi di Milano, 2007. http://hdl.handle.net/2434/58412.

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2

Khong, Ngan Giang. "Etude fonctionnelle de facteurs de transcription OsMADS25 et OsMADS26 dans le développement et dans la réponse aux différents stress biotique et abiotique chez le riz." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20120.

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Le riz (Oryza sativa L) est la source principale d'alimentation pour plus de la moitié de la population mondiale (Khush, 2005). La production de riz devrait augmenter de plus de 40% en 2030 pour satisfaire la demande de croissance de la population. Chaque année, environ 25% de la production est perdue à cause des insectes ravageurs, des maladies et des mauvaises herbes (Khus, 2005). Des pertes semblables sont dues aux stress abiotiques comme la sécheresse. L'objectif de mon travail de thèse a consisté à étudier la fonction de deux facteurs de transcription (FT) à boîte MADS OsMADS25 et OsMADS2
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3

Zamzam, Mohamed. "Rice transcription factors OsMADS2 and OsMADS4 regulate floret organ development: Deciphering their gene targets, traits and functions related to their unequal genetic redundancy." Thesis, 2023. https://etd.iisc.ac.in/handle/2005/6185.

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Organs in modern dicot flowers are positioned in concentric rings (whorls). The outermost whorl has green protective sepals, internal to which are showy petals, and the reproductive stamen and carpel whorls. Florets of rice, cereals and grasses evolved certain morphological and functionally distinct features in their non-reproductive organs. Striking among them are the highly modified petal analogs; called lodicules, and the large bract-like outermost organs named palea and lemma. The analogy of these modified rice floret organs to sepals and petals is debated. The two lodicules of rice floret
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4

Lin, Shu-Yu, and 林書宇. "Studies on rice genes involved in early flowering regulated by OsMADS14 and panilce exsertion regulated by OsMADS34." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/77230047457895666724.

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碩士<br>國立中興大學<br>分子生物學研究所<br>105<br>M52048, a T-DNA insertion mutant, shows dwarf, early flowering, node bending and impaired in panicle exsertion and it has been demonstrated to have three flanking genes OsMADS14, OsMADS34 and OsCP7 activated. Transgenic plants, Ubi:OsMADS14, ectopically overexpressing OsMADS14 revealed dwarf and early flowering phenotype, and up-regulated expression of florigen genes Hd3a and RFT1 were observed in the previous study. The first part of this study is to investigate the possible mechanisms that how the expression of Hd3a and RFT1 can be up-regulated by OsMADS14.
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5

Li, Tzu-Yin, and 李咨胤. "Characterization of the T-DNA insertion mutant M52048 and functional study of three activated genes OsMADS34、OsMADS14 and OsCP7." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/gp7a2s.

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碩士<br>國立中興大學<br>分子生物學研究所<br>99<br>A rice T-DNA insertion mutant M0052048 showing extreme early flowering, bending tillers and impairment in panicle exertion was isolated from the Taiwan Rice Insertion Mutant (TRIM) library. This mutant contained a copy of the T-DNA tag inserted in the chromosome number 3 at the 64,867 bp position of OSJBa0032E21 BAC clone where the expression of 048-3 (OsMADS34), 048-4 (OsMADS14) and 048-7 (putative cysteine proteinase, OsCP7) genes were activated by the 35S enhancer located in the T-DNA. The OsMADS14 and OsMADS34 are MADS box-containing transcription factors
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6

Yadav, Shri Ram. "Functions For OsMADS2 And OsMADS1 As Master Regulators Of Gene Expression During Rice Floret Meristem Specification And Organ Development." Thesis, 2009. https://etd.iisc.ac.in/handle/2005/2030.

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Plant reproductive development begins when vegetative shoot apical meristems change their fate to inflorescence meristems which develop floral meristems on the flanks. This process of meristem fate change and organ development involves regulated activation and/or repression of many cell fate determining factors that execute down-stream gene expression cascades. Flowers are formed when floral organs are specified on the floral meristem in four concentric whorls. In the model dicot plant Arabidopsis, the identity and pattern of floral organs is determined by combined actions of MADS-domain conta
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7

Yadav, Shri Ram. "Functions For OsMADS2 And OsMADS1 As Master Regulators Of Gene Expression During Rice Floret Meristem Specification And Organ Development." Thesis, 2009. http://etd.iisc.ernet.in/handle/2005/2030.

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Plant reproductive development begins when vegetative shoot apical meristems change their fate to inflorescence meristems which develop floral meristems on the flanks. This process of meristem fate change and organ development involves regulated activation and/or repression of many cell fate determining factors that execute down-stream gene expression cascades. Flowers are formed when floral organs are specified on the floral meristem in four concentric whorls. In the model dicot plant Arabidopsis, the identity and pattern of floral organs is determined by combined actions of MADS-domain conta
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8

Chen, Ying-Chin, and 陳潁芩. "Functional analysis of rice OsMADS14 and OsCP7 genes." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/69776772634934706215.

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碩士<br>國立中興大學<br>分子生物學研究所<br>103<br>The T-DNA mutant M52048 identified from Taiwan Rice Insertional Mutant (TRIM) library showed dwarf, early flowering, node bending and impaired in panicle exertion. Three flanking genes, OsMADS34, OsMADS14 and OsCP7 (putative cysteine protease 7) were activated in this mutant. Both OsMADS34 and OsMADS14 belong to MADS-box gene family that may participate in regulation of flowering time and the identity of floral organ. OsCP7 is a member of C1A cysteine proteases. In this study, the function of OsMADS14 and OsCP7 were further investigated. Previous study has de
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9

Chen, Chou-Fan, and 陳秋帆. "Functional analysis of rice OsMADS14 in transgenic plants." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/85953912950478779278.

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碩士<br>輔英科技大學<br>生物科技系碩士班<br>100<br>Oncidium is one of the most important orchids used for cut flowers and potted plants in Taiwan. The creation of new cultivars with novel traits is important for Oncidium to enhance the competitiveness of orchid industry. However, traditional breeding processes are limited by the long life cycle and self-incompatibility. The objectives of this study intend to analyze rice AP1-like gene OsMADS14 in Arabidopsis and Oncidium through genetic transformation. In this study, the rice gene OsMADS14 driven by maize ubiqutin promoter was introduced into Arabidopsis and
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10

Chang, Fei-Han, and 張斐涵. "Overexpression of OsMADS34 and OsCP7 affecting panicle development in rice." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/18782266113590810452.

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碩士<br>國立中興大學<br>分子生物學研究所<br>103<br>The T-DNA mutant M52048 identified from Taiwan Rice Insertional Mutant (TRIM) library showed dwarf, early flowering, node bending and impaired in panicle exertion. Three flanking genes, OsMADS34, OsMADS14 and OsCP7 (putative cysteine protease 7) were activated in this mutant. Both OsMADS34 and OsMADS14 belong to MADS-box gene family that may participate in regulation of flowering time and the identity of floral organ. OsCP7 encode a putative cysteine protease, belongs to C1A cysteine protease family, its function remains unknown. In this study the function of
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11

Lin, Shih-Min, and 林仕敏. "Functional studies of the flowering regulative genes OsMADS14/15/18 in TNG67." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/sx9t54.

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碩士<br>國立中興大學<br>分子生物學研究所<br>107<br>Flowering is an important developmental process for seed producing in plants. Previous studies had showed that respective over-expressing OsMADS14, OsMADS15 and OsMADS18 in rice would cause early flowering phenotype, implied that the three genes might play vital roles in regulating flowering process of rice. Moreover, the accumulation of OsMADS14 in both of T-DNA activation tagging mutant M52048 and Ubi:OsMADS14 transgenic rice result in dwarf and early flowering phenotype, which accompanied with activation of Hd3a, RFT1 and OsMADS15, raising the possibility
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12

Wang, Jiun-Da, and 王俊達. "Molecular regulation and agronomic traits of ectopic expression of OsMADS45 in transgenic rice." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/06426105691391245374.

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博士<br>國立中興大學<br>生命科學系所<br>101<br>The rice gene, OsMADS45, which belongs to the MADS-box E class gene, participates in the regulation of floral development. Previous studies have revealed that ectopic expression of OsMADS45 induces early flowering and reduces plant height under short-day (SD) conditions. However, the regulation mechanism of OsMADS45 overexpression remains unknown. We introduce an OsMADS45 overexpression construct Ubi:OsMADS45 into TNG67 plants (an Hd1 (Heading date 1) and Ehd1 (Early heading date 1) defective rice cultivar grown in Taiwan), and we analyzed the expression patter
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13

Khanday, Imtiyaz. "Target Genes and Pathways Regulated by OsMADSI during Rice Floret Specification and Development." Thesis, 2013. http://etd.iisc.ac.in/handle/2005/3395.

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In angiosperms, specialized reproductive structures are borne in flowers to ensure their reproductive success. After the vegetative growth, plants undergo reproductive phase change to produce flowers. Floral meristems (FMs) are generated on the flanks of inflorescence and groups of specialized stem cells in the FM differentiate into four whorls of organs of a flower. In dicots, floral meristem successively gives rise to sepals, petals, stamens and carpels; after which it terminates. The fate of organs formed on FM is under the control of genetic regulators, key among which are members of MADS
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14

Khanday, Imtiyaz. "Target Genes and Pathways Regulated by OsMADSI during Rice Floret Specification and Development." Thesis, 2013. http://etd.iisc.ernet.in/2005/3395.

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In angiosperms, specialized reproductive structures are borne in flowers to ensure their reproductive success. After the vegetative growth, plants undergo reproductive phase change to produce flowers. Floral meristems (FMs) are generated on the flanks of inflorescence and groups of specialized stem cells in the FM differentiate into four whorls of organs of a flower. In dicots, floral meristem successively gives rise to sepals, petals, stamens and carpels; after which it terminates. The fate of organs formed on FM is under the control of genetic regulators, key among which are members of MADS
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15

Huang, Jian-Fu, and 黃建富. "Rice gene functional analysis of panicle aberrant development in ectopically overexpressed OsMADS34 and OsCP7." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/24584460457880853165.

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碩士<br>國立中興大學<br>分子生物學研究所<br>101<br>M52048 is a rice mutant with T-DNA insertion which activated flanking genes OsMADS14, OsMADS34 and OsCP7, resulting in darwf, early flowering, node bending and impaired panicle exertion. OsMADS14 and OsMADS34 belong to MADS-box gene family, can regulate the flowering time and the floral meristem development. OsMADS14 regulate the flowering time and has been well studies. OsMADS34 has been known to regulate the floral meristem development and panicle branching, OsCP7 encodes a putative cysteine protease, but the function by overexpressing OsMADS34 and OsCP7 ge
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16

Lhaineikim, Grace. "Delineating the Role of OsMADS1 in Auxin Distribution, Floret Identity and Floret Meristem Determinacy." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/2853.

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Rice have highly derived florets borne on a short branch called ‘spikelet’ comprised of a pair of rudimentary glumes and sterile lemma (empty glumes) that subtends a single fertile floret. The floral organs consist of a pair of lodicules, six stamens and a central carpel that are enclosed by a pair of bract-like organs, called lemma and palea. A progressive reprogramming of meristem identity during the floral development of flowers, on branches on the inflorescence, is correlated with changes in transcriptional status of regulatory genes that execute cascades of distinct developmental events.
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17

Lhaineikim, Grace. "Delineating the Role of OsMADS1 in Auxin Distribution, Floret Identity and Floret Meristem Determinacy." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2853.

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Rice have highly derived florets borne on a short branch called ‘spikelet’ comprised of a pair of rudimentary glumes and sterile lemma (empty glumes) that subtends a single fertile floret. The floral organs consist of a pair of lodicules, six stamens and a central carpel that are enclosed by a pair of bract-like organs, called lemma and palea. A progressive reprogramming of meristem identity during the floral development of flowers, on branches on the inflorescence, is correlated with changes in transcriptional status of regulatory genes that execute cascades of distinct developmental events.
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18

Kartha, Reena V. "Regulated Expression Of OsMADS1, A MADS Domain Containing Transcription Factor, Involved In Rice Floret Development." Thesis, 2005. https://etd.iisc.ac.in/handle/2005/2198.

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19

Kartha, Reena V. "Regulated Expression Of OsMADS1, A MADS Domain Containing Transcription Factor, Involved In Rice Floret Development." Thesis, 2005. http://etd.iisc.ernet.in/handle/2005/2198.

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20

Parab, Aniket Girish. "Functional Characterization of a SAND–Domain–containing Factor OsULTRAPETALA1 – a Direct Downstream Target of OsMADS1." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5458.

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Studies on meristem identity regulators in Rice (Oryza sativa), a model plant for cereal crops have revealed how meristem identity and transitions are controlled, bearing implications for crop yield improvement. We were interested in exploring the function of OsULTRAPETALA1 (OsULT1), whose Arabidopsis homolog is a TrxG Factor, in rice inflorescence and spikelet/floret organ development. OsULT1 is a direct downstream target of floret meristem identity and development transcriptional regulator OsMADS1 (Khanday et al., 2016). The aim of this thesis is to functionally characterize OsULT1 by raisin
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21

Fan, Hsiu-Tzu, and 范秀姿. "Establishment of transformation system for mini and early flowering gene in phalaenopsis Orchid- applications of GA2ox6 and OsMADS14." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/7yp5be.

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碩士<br>國立中興大學<br>分子生物學研究所<br>102<br>The flowers of Phalaenopsis orchid have beautiful shape, brightly colors with long flowering period, are mostly used for commercial purposes, such as ornamental layout. Due to the semi-tropical location and climate condition, Taiwan becomes the most appropriate location for planting orchids and this makes orchids the most important export flowers in Taiwan, and consequently makes Taiwan as the "Orchid Kingdom" in the world. The diversities of orchid were mainly crossbred in the past; however many studies using transgenic or mutagenesis methods to change the c
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22

Prakash, Sandhan. "Investigating Partners of OsMADS1 Transcription Factor and functions for some associated factors for roles in rice inflorescence and floral development." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/5024.

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Title: Investigating Partners of OsMADS1 Transcription Factor and functions for some associated factors for roles in rice inflorescence and floral development The classic ABCDE model for floral organ identity show that the combinatorial action of MADS domain transcription factors directs floral organ identity and their normal development. While floral MADS-box transcription factors are in general conserved among diverse flowering plants, several studies suggest emergence of distinct functions for some of these conserved factors. Rice E- or SEP-class genes, when compared to Arabidopsis SEP-cla
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23

Hsu, Min-Yu, and 許民育. "Studies on the molecular mechanisms involved in OsMADS14-regulated early flowering and evaluation on the establishment of an inducible transgenic platform in rice." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/80131340567549992713.

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碩士<br>國立中興大學<br>生命科學系所<br>104<br>The early flowering phenotype of a rice T-DNA insertion mutant M52048 had been demonstrated due to the activation of OsMADS14, an Arabidopsis AP1 homologous gene involved in flowering regulation. Overexpressing OsMADS14 with ubiquitin promoter construct Ubi:OsMADS14 in TNG67 revealed early flowering as observed in M52048. In addition, the early expression of two floregin genes Hd3a and RFT1 were observed and enhanced in Ubi:OsMADS14 transgenic rice. However, how the activation and overexpression of OsMADS14 in rice could result in early flowering as AP1 did in
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