journal
MENU ▼
Read by QxMD icon Read
search

Rice

journal
https://www.readbyqxmd.com/read/28321828/genome-wide-association-analysis-tracks-bacterial-leaf-blight-resistance-loci-in-rice-diverse-germplasm
#1
Christine Jade Dilla-Ermita, Erwin Tandayu, Venice Margarette Juanillas, Jeffrey Detras, Dennis Nicuh Lozada, Maria Stefanie Dwiyanti, Casiana Vera Cruz, Edwige Gaby Nkouaya Mbanjo, Edna Ardales, Maria Genaleen Diaz, Merlyn Mendioro, Michael J Thomson, Tobias Kretzschmar
BACKGROUND: A range of resistance loci against different races of Xanthomonas oryzae pv. oryzae (Xoo), the pathogen causing bacterial blight (BB) disease of rice, have been discovered and characterized. Several have been deployed in modern varieties, however, due to rapid evolution of Xoo, a number have already become ineffective. The continuous "arms race" between Xoo and rice makes it imperative to discover new resistance loci to enable durable deployment of multiple resistance genes in modern breeding lines...
December 2017: Rice
https://www.readbyqxmd.com/read/28243987/differential-regulation-of-starch-synthetic-gene-expression-in-endosperm-between-indica-and-japonica-rice-cultivars
#2
Tsuyoshi Inukai
BACKGROUND: Grain filling rates (GFRs) of indica rice cultivars are often higher than those of japonica cultivars. Although GFR is mainly determined by the starch accumulation rate (SAR) in endosperm, the genetic basis for SAR during the ripening period has not been well studied in rice. To elucidate the factors influencing the differing SARs between typical indica and japonica cultivars, we focused on differences in sink potentials, especially on starch synthesis in the endosperm. RESULTS: SAR in indica rice cultivar IR36 was significantly higher than in japonica cultivar T65...
December 2017: Rice
https://www.readbyqxmd.com/read/28220451/osrlck-57-osrlck107-and-osrlck118-positively-regulate-chitin-and-pgn-induced-immunity-in-rice
#3
Zhangqun Li, Ying Ao, Dongru Feng, Jun Liu, Jinfa Wang, Hong-Bin Wang, Bing Liu
BACKGROUND: The receptor-like cytoplasmic kinase, OsRLCK176 has been reported to participate in both chitin- and PGN-induced immunity in rice. Here, we further researched the function of the homologous proteins, OsRLCK57, OsRLCK107 and OsRLCK118, in chitin- and PGN immunity in rice. FINDINGS: Silencing of OsRLCK57,OsRLCK107 and OsRLCK118 suppressed chitin- and PGN-induced immunity responses, including reactive oxygen species generation, defense gene expression. Furthermore, OsRLCK107 could interact with OsCERK1 in a MAMP induced way, which suggested a possible physiological relevance of OsRLCKs107 to OsCERK1 pathway...
December 2017: Rice
https://www.readbyqxmd.com/read/28205154/the-nup98-homolog-apip12-targeted-by-the-effector-avrpiz-t-is-involved-in-rice-basal-resistance-against-magnaporthe-oryzae
#4
Mingzhi Tang, Yuese Ning, Xiaoli Shu, Bo Dong, Hongyan Zhang, Dianxing Wu, Hua Wang, Guo-Liang Wang, Bo Zhou
BACKGROUND: The effector AvrPiz-t of Magnaporthe oryzae has virulence function in rice. However, the mechanism underlying its virulence in host is not fully understood. RESULTS: In this study, we analyzed the function of AvrPiz-t interacting protein 12 (APIP12) in rice immunity. APIP12 significantly bound to AvrPiz-t and APIP6 in its middle portion and N-terminus, respectively, in yeast two-hybrid assay. Glutathione S-transferase (GST) pull-down assay further verified the interactions of APIP12 with AvrPiz-t and APIP6...
December 2017: Rice
https://www.readbyqxmd.com/read/28176282/evolutionary-analysis-of-the-sub1-locus-across-the-oryza-genomes
#5
Railson Schreinert Dos Santos, Daniel da Rosa Farias, Camila Pegoraro, Cesar Valmor Rombaldi, Takeshi Fukao, Rod A Wing, Antonio Costa de Oliveira
BACKGROUND: Tolerance to complete submergence is recognized in a limited number of Asian rice (Oryza sativa L.) varieties, most of which contain submergence-inducible SUB1A on the polygenic SUBMERGENCE-1 (SUB1) locus. It has been shown that the SUB1 locus encodes two Ethylene-Responsive Factor (ERF) genes, SUB1B and SUB1C, in all O. sativa varieties. These genes were also found in O rufipogon and O nivara, wild relatives of O. sativa. However, detailed analysis of the polygenic locus in other Oryza species has not yet been made...
December 2017: Rice
https://www.readbyqxmd.com/read/28124210/a-temporal-and-spatial-contribution-of-asparaginase-to-asparagine-catabolism-during-development-of-rice-grains
#6
Yui Yabuki, Miwa Ohashi, Fumi Imagawa, Keiki Ishiyama, Marcel Pascal Beier, Noriyuki Konishi, Toshiko Umetsu-Ohashi, Toshihiko Hayakawa, Tomoyuki Yamaya, Soichi Kojima
BACKGROUND: Asparagine is one of the most dominant organic nitrogen compounds in phloem and xylem sap in a wide range of plant species. Asparaginase (ASNase; EC, 3.5.1.1) catabolizes asparagine into aspartate and ammonium; therefore, it is suggested to play a key role in asparagine metabolism within legume sink organs. However, the metabolic fate of asparagine in source and sink organs during rice seed production remains to be elucidated. Therefore, the main objective of this study is to investigate the asparagine metabolism in a temporal and spatial manner during rice seed production...
December 2017: Rice
https://www.readbyqxmd.com/read/28110460/ability-of-rf5-and-rf6-to-restore-fertility-of-chinsurah-boro-ii-type-cytoplasmic-male-sterile-oryza-sativa-ssp-japonica-lines
#7
Honggen Zhang, Jianlan Che, Yongshen Ge, Yan Pei, Lijia Zhang, Qiaoquan Liu, Minghong Gu, Shuzhu Tang
BACKGROUND: Three-line Oryza sativa (ssp. japonica) hybrids have been developed mainly using Chinsurah Boro II (BT)-type cytoplasmic male sterility (CMS). The Rf1 gene restores the fertility of BT-type CMS lines, and is the only fertility restorer gene (Rf) that has been used to produce three-line japonica hybrids. Using more Rf genes to breed BT-type restorer lines may broaden the genetic diversity of the restorer lines, and represents a viable approach to improve the heterosis level of BT-type japonica hybrids...
December 2017: Rice
https://www.readbyqxmd.com/read/28078486/two-nadph-protochlorophyllide-oxidoreductase-por-isoforms-play-distinct-roles-in-environmental-adaptation-in-rice
#8
Choon-Tak Kwon, Suk-Hwan Kim, Giha Song, Dami Kim, Nam-Chon Paek
BACKGROUND: NADPH: protochlorophyllide oxidoreductase (POR) is an essential enzyme that catalyzes the photoreduction of protochlorophyllide to chlorophyllide, which is ultimately converted to chlorophyll in developing leaves. Rice has two POR isoforms, OsPORA and OsPORB. OsPORA is expressed in the dark during early leaf development; OsPORB is expressed throughout leaf development regardless of light conditions. The faded green leaf (fgl) is a loss-of-function osporB mutant that displays necrotic lesions and variegation in the leaves due to destabilized grana thylakoids, and has increased numbers of plastoglobules in the chloroplasts...
December 2017: Rice
https://www.readbyqxmd.com/read/27910002/the-rice-pentatricopeptide-repeat-gene-tcd10-is-needed-for-chloroplast-development-under-cold-stress
#9
Lanlan Wu, Jun Wu, Yanxia Liu, Xiaodi Gong, Jianlong Xu, Dongzhi Lin, Yanjun Dong
BACKGROUND: Chloroplast plays a vital role in plant development and growth. The pentatricopeptide repeat (PPR) gene family is one of the largest gene families in plants. In addition, cold stress affects a broad spectrum of cellular components, e.g. chloroplast, and metabolism in plants. However, the regulatory mechanism for rice PPR genes on chloroplast development still remains elusive under cold stress. RESULT: In this paper, we characterized a new rice PPR gene mutant tcd10 (thermo-sensitive chlorophyll-deficient mutant 10) that exhibits the albino phenotype, malformed chloroplast and could not survive after the 5-leaf stage when grown at 20 °C, but does the normal phenotype at 32 °C...
December 2016: Rice
https://www.readbyqxmd.com/read/27905090/marker-assisted-breeding-of-the-rice-restorer-line-wanhui-6725-for-disease-resistance-submergence-tolerance-and-aromatic-fragrance
#10
Yanchang Luo, Tingchen Ma, Aifang Zhang, Kar Hui Ong, Zefu Li, Jianbo Yang, Zhongchao Yin
BACKGROUND: Rice is a staple food crop in the world. With the increase in world population and economic development, farmers need to produce more rice in limited field. However, the rice production is frequently affected by biotic and abiotic stresses. The use of natural disease resistance and stress tolerance through genetic breeding is the most efficient and economical way to combat or acclimate to these stresses. In addition, rice with aromatic fragrance can significantly increase market value for its good grain quality...
December 2016: Rice
https://www.readbyqxmd.com/read/27900724/suppression-of-osvpe3-enhances-salt-tolerance-by-attenuating-vacuole-rupture-during-programmed-cell-death-and-affects-stomata-development-in-rice
#11
Wenyun Lu, Minjuan Deng, Fu Guo, Mingqiang Wang, Zhanghui Zeng, Ning Han, Yinong Yang, Muyuan Zhu, Hongwu Bian
BACKGROUND: Vacuolar processing enzymes (VPEs) are cysteine proteinases that act as crucial mediators of programmed cell death (PCD) in plants. In rice, however, the role of VPEs in abiotic stress-induced PCD remains largely unknown. In this study, we generated OsVPE3 overexpression and suppression transgenic lines to elucidate the function of this gene in rice. RESULTS: Survival rate and chlorophyll retention analyses showed that suppression of OsVPE3 clearly enhanced salt stress tolerance in transgenic rice compared with wild type...
December 2016: Rice
https://www.readbyqxmd.com/read/27900723/small-grain-11-controls-grain-size-grain-number-and-grain-yield-in-rice
#12
Na Fang, Ran Xu, Luojiang Huang, Baolan Zhang, Penggen Duan, Na Li, Yuehua Luo, Yunhai Li
BACKGROUND: Grain size is one of key agronomic traits that determine grain yield in rice. Several regulators of grain size have been identified in rice, but the mechanisms that determine grain size and yield remain largely unknown. RESULTS: Here we characterize a small grain (smg11) mutant in rice, which exhibits small grains, dense panicles and the increased number of grains per panicle. Cloning and sequence analyses of the SMG11 gene reveal that smg11 is a new allele of DWARF2 (D2), which encodes a cytochrome P450 (CYP90D2) involved in brassinosteroid biosynthetic pathway...
December 2016: Rice
https://www.readbyqxmd.com/read/27888467/oswrky80-oswrky4-module-as-a-positive-regulatory-circuit-in-rice-resistance-against-rhizoctonia-solani
#13
Xixu Peng, Haihua Wang, Jyan-Chyun Jang, Ting Xiao, Huanhuan He, Dan Jiang, Xinke Tang
BACKGROUND: Plant WRKY transcription factors play pivotal roles in diverse biological processes but most notably in plant defense response to pathogens. Sheath blight represents one of the predominant diseases in rice. However, our knowledge about the functions of WRKY proteins in rice defense against sheath blight is rather limited. RESULTS: Here we demonstrate that the expression of Oryza sativa WRKY80 gene (OsWRKY80) is rapidly and strongly induced upon infection of Rhizoctonia solani, the causal agent of rice sheath blight disease...
December 2016: Rice
https://www.readbyqxmd.com/read/27882529/qtl-mapping-of-grain-quality-traits-using-introgression-lines-carrying-oryza-rufipogon-chromosome-segments-in-japonica-rice
#14
Yeo-Tae Yun, Chong-Tae Chung, Young-Ju Lee, Han-Jung Na, Jae-Chul Lee, Sun-Gye Lee, Kwang-Won Lee, Young-Hwan Yoon, Ju-Won Kang, Hyun-Sook Lee, Jong-Yeol Lee, Sang-Nag Ahn
BACKGROUND: Improved eating quality is a major breeding target in japonica rice due to market demand. Consequently, quantitative trait loci (QTL) for glossiness of cooked rice and amylose content associated with eating quality have received much research focus because of their importance in rice quality. RESULTS: In this study, QTL associated with 12 grain quality traits were identified using 96 introgression lines (IL) of rice developed from an interspecific cross between the Korean elite O...
December 2016: Rice
https://www.readbyqxmd.com/read/27848161/genome-wide-association-mapping-of-cold-tolerance-genes-at-the-seedling-stage-in-rice
#15
Dan Wang, Jinling Liu, Chengang Li, Houxiang Kang, Yue Wang, Xinqiu Tan, Minghao Liu, Yufei Deng, Zhilong Wang, Yong Liu, Deyong Zhang, Yinghui Xiao, Guo-Liang Wang
BACKGROUND: Rice is a temperature-sensitive crop and its production is severely affected by low temperature in temperate and sub-tropical regions. To understand the genetic basis of cold tolerance in rice, we evaluated the cold tolerance at the seedling stage (CTS) of 295 rice cultivars in the rice diversity panel 1 (RDP1), these cultivars were collected from 82 countries. RESULTS: The evaluations revealed that both temperate and tropical japonica rice cultivars are more tolerant to cold stress than indica and AUS cultivars...
December 2016: Rice
https://www.readbyqxmd.com/read/27837430/isolation-and-characterization-of-an-aluminum-resistant-mutant-in-rice
#16
Shuo Liu, Huiling Gao, Xiaoyan Wu, Qiu Fang, Lan Chen, Fang-Jie Zhao, Chao-Feng Huang
BACKGROUND: Aluminum (Al) toxicity represents a major constraint for crop production on acid soils. Rice is a high Al-resistant plant species among small-grain cereals, but its molecular mechanisms of Al resistance are not fully understood. We adopted a forward genetic screen strategy to uncover the Al-resistance mechanisms in rice. In this study, we screened an ethylmethylsulfone (EMS)-mutagenized library to isolate and characterize mutants with altered sensitivity to Al in rice. RESULTS: Treatment of an Al-intolerant indica variety Kasalath with 20 μM Al induced root swelling...
December 2016: Rice
https://www.readbyqxmd.com/read/27830537/association-mapping-of-resistance-to-rice-blast-in-upland-field-conditions
#17
Louis-Marie Raboin, Elsa Ballini, Didier Tharreau, Alain Ramanantsoanirina, Julien Frouin, Brigitte Courtois, Nourollah Ahmadi
BACKGROUND: Rice blast is one of the most damaging disease of rice. The use of resistant cultivars is the only practical way to control the disease in developing countries where most farmers cannot afford fungicides. However resistance often breaks down. Genome wide association studies (GWAS) allow high resolution exploration of rice genetic diversity for quantitative and qualitative resistance alleles that can be combined in breeding programs to achieve durability. We undertook a GWAS of resistance to rice blast using a tropical japonica panel of 150 accessions genotyped with 10,937 markers and an indica panel of 190 accessions genotyped with 14,187 markers...
December 2016: Rice
https://www.readbyqxmd.com/read/27766601/genetic-diversity-and-population-structure-of-rice-varieties-cultivated-in-temperate-regions
#18
Juan L Reig-Valiente, Juan Viruel, Ester Sales, Luis Marqués, Javier Terol, Marta Gut, Sophia Derdak, Manuel Talón, Concha Domingo
BACKGROUND: After its domestication, rice cultivation expanded from tropical regions towards northern latitudes with temperate climate in a progressive process to overcome limiting photoperiod and temperature conditions. This process has originated a wide range of diversity that can be regarded as a valuable resource for crop improvement. In general, current rice breeding programs have to deal with a lack of both germplasm accessions specifically adapted to local agro-environmental conditions and adapted donors carrying desired agronomical traits...
December 2016: Rice
https://www.readbyqxmd.com/read/27757948/rice-chloroplast-genome-variation-architecture-and-phylogenetic-dissection-in-diverse-oryza-species-assessed-by-whole-genome-resequencing
#19
Wei Tong, Tae-Sung Kim, Yong-Jin Park
BACKGROUND: Chloroplast genome variations have been detected, despite its overall conserved structure, which has been valuable for plant population genetics and evolutionary studies. Here, we described chloroplast variation architecture of 383 rice accessions from diverse regions and different ecotypes, in order to mine the rice chloroplast genome variation architecture and phylogenetic. RESULTS: A total of 3677 variations across the chloroplast genome were identified with an average density of 27...
December 2016: Rice
https://www.readbyqxmd.com/read/27730519/population-dynamics-among-six-major-groups-of-the-oryza-rufipogon-species-complex-wild-relative-of-cultivated-asian-rice
#20
HyunJung Kim, Janelle Jung, Namrata Singh, Anthony Greenberg, Jeff J Doyle, Wricha Tyagi, Jong-Wook Chung, Jennifer Kimball, Ruaraidh Sackville Hamilton, Susan R McCouch
BACKGROUND: Understanding population structure of the wild progenitor of Asian cultivated rice (O. sativa), the Oryza rufipogon species complex (ORSC), is of interest to plant breeders and contributes to our understanding of rice domestication. A collection of 286 diverse ORSC accessions was evaluated for nuclear variation using genotyping-by-sequencing (113,739 SNPs) and for chloroplast variation using Sanger sequencing (25 polymorphic sites). RESULTS: Six wild subpopulations were identified, with 25 % of accessions classified as admixed...
December 2016: Rice
journal
journal
42322
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"