scholarly journals Variation in the Abundance of OsHAK1 Transcript Underlies the Differential Salinity Tolerance of an indica and a japonica Rice Cultivar

2018 ◽  
Vol 8 ◽  
Author(s):  
Guang Chen ◽  
Chaolei Liu ◽  
Zhenyu Gao ◽  
Yu Zhang ◽  
Anpeng Zhang ◽  
...  
Keyword(s):  
Salinity Tolerance ◽  
Rice Cultivar ◽  
Japonica Rice

scholarly journals Identification of quantitative trait loci for leaf traits in rice

Genetika ◽  
2016 ◽  
Vol 48 (2) ◽  
pp. 643-652 ◽  
Author(s):  
Baoyan Jia ◽  
Xinhua Zhao ◽  
Yang Qin ◽  
Muhammad Irfan ◽  
Tae-Heon Kim ◽  
...  
Keyword(s):  
Recombinant Inbred Lines ◽  
Leaf Traits ◽  
Rice Cultivar ◽  
Interval Mapping ◽  
Mapping Method ◽  
Japonica Rice ◽  
Phenotypic Variance ◽  
Simple Sequence ◽  
Variance Explained ◽  
Map Distance

A recombinant inbred lines (RILs) population of 90 lines were developed from a subspecies cross between an indica type cultivar, ?Cheongcheong?, and a japonica rice cultivar, ?Nagdong? was evaluated for leaf traits in 2009. A genetic linkage map consisting of 154 simple sequence repeat (SSR) markers was constructed, covering 1973.6 cM of 12 chromosomes with an average map distance of 13.9 cM between markers. By composite interval mapping method a total of 19 QTLs were identified for the leaf traits on 5 chromosomes (Chr.1, Chr.3, Chr.6, Chr.8 and Chr.11). The percentage of phenotypic variance explained by each QTL varied from 8.1% to 29.4%. Five pleiotropic effects loci were identified on chromosomes 1,6.

scholarly journals The Tolerance of Salinity in Rice Requires the Presence of a Functional Copy of FLN2

Biomolecules ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 17 ◽  
Author(s):  
Guang Chen ◽  
Jiang Hu ◽  
Liuliu Dong ◽  
Dali Zeng ◽  
Longbiao Guo ◽  
...  
Keyword(s):  
Salinity Stress ◽  
Salinity Tolerance ◽  
Sugar Metabolism ◽  
Invertase Activity ◽  
Leaf Sheath ◽  
Japonica Rice ◽  
Wild Type ◽  
Bisphosphate Carboxylase ◽  
Genes Encoding ◽  
Knockout Line

A panel of ethane-methyl-sulfonate-mutagenized japonica rice lines was grown in the presence of salinity in order to identify genes required for the expression of salinity tolerance. A highly nontolerant selection proved to harbor a mutation in FLN2, a gene which encodes fructokinase-like protein2. Exposure of wild-type rice to salinity up-regulated FLN2, while a CRISPR/Cas9-generated FLN2 knockout line was hypersensitive to the stress. Both ribulose 1,5-bisphosphate carboxylase/oxygenase activity and the abundance of the transcript generated by a number of genes encoding components of sucrose synthesis were lower in the knockout line than in wild-type plants’ leaves, while the sucrose contents of the leaf and root were, respectively, markedly increased and decreased. That sugar partitioning to the roots was impaired in FLN2 knockout plants was confirmed by the observation that several genes involved in carbon transport were down-regulated in both the leaf and in the leaf sheath. The levels of sucrose synthase, acid invertase, and neutral invertase activity were distinctly lower in the knockout plants’ roots than in those of wild-type plants, particularly when the plants were exposed to salinity stress. The compromised salinity tolerance exhibited by the FLN2 knockout plants was likely a consequence of an inadequate supply of the assimilate required to support growth, a problem which was rectifiable by providing an exogenous supply of sucrose. The conclusion was that FLN2, on account of its influence over sugar metabolism, is important in the context of seedling growth and the rice plant’s response to salinity stress.

Effect of high temperature on starch biosynthetic enzymes and starch structure in japonica rice cultivar ‘Akitakomachi’ (Oryza sativa L.) endosperm and palatability of cooked rice

2019 ◽  
Vol 87 ◽  
pp. 209-214 ◽  
Author(s):  
Kazunao Kato ◽  
Yuta Suzuki ◽  
Yuko Hosaka ◽  
Ryuichi Takahashi ◽  
Ikuko Kodama ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
High Temperature ◽  
Oryza Sativa L ◽  
Rice Cultivar ◽  
Biosynthetic Enzymes ◽  
Japonica Rice ◽  
Cooked Rice ◽  
Starch Structure

scholarly journals Efficient Anther Culture Method of the Japonica Rice Cultivar Koshihikari.

2000 ◽  
Vol 50 (3) ◽  
pp. 197-202 ◽  
Author(s):  
Masaaki Daigen ◽  
Osamu Kawakami ◽  
Yuji Nagasawa
Keyword(s):  
Anther Culture ◽  
Culture Method ◽  
Rice Cultivar ◽  
Japonica Rice

scholarly journals Variation in Yield and Physicochemical Quality Traits among Mutants of Japonica Rice Cultivar Wuyujing 3

Rice Science ◽  
2016 ◽  
Vol 23 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Jose Daniel Abacar ◽  
Lin Zhao-miao ◽  
Zhang Xin-cheng ◽  
Ding Cheng-qiang ◽  
Tang She ◽  
...  
Keyword(s):  
Rice Cultivar ◽  
Japonica Rice ◽  
Quality Traits ◽  
Physicochemical Quality

Detection of Quantitative Trait Loci for Stickiness and Appearance Based on Eating Quality Test in japonica Rice Cultivar

2006 ◽  
Vol 8 (2) ◽  
pp. 39-47 ◽  
Author(s):  
Isao Tanaka ◽  
Asako Kobayashi ◽  
Katsura Tomita ◽  
Yoshinobu Takeuchi ◽  
Masumi Yamagishi ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Quantitative Trait ◽  
Rice Cultivar ◽  
Eating Quality ◽  
Japonica Rice ◽  
Quality Test ◽  
Trait Loci

scholarly journals Characterization and Genealogical Analysis of Panicle Blast Resistance in a RSV-resistant japonica Rice Cultivar Tsukinohikari and Related Cultivars.

1999 ◽  
Vol 1 (2) ◽  
pp. 69-76 ◽  
Author(s):  
Kiyoshi Fujii ◽  
Takamichi Tooyama ◽  
Naoki Sugiura ◽  
Norikuni Saka ◽  
Toshihiko Izawa ◽  
...  
Keyword(s):  
Blast Resistance ◽  
Rice Cultivar ◽  
Japonica Rice ◽  
Genealogical Analysis ◽  
Panicle Blast

scholarly journals Development of Near-Isogenic Line of japonica Rice Cultivar Saenuri without Lipoxygenase-3

2019 ◽  
Vol 51 (3) ◽  
pp. 190-200
Author(s):  
Hyun-Su Park ◽  
Keon-Mi Lee ◽  
Ki-Young Kim ◽  
Jeong-Ju Kim ◽  
Woon-Cheol Shin ◽  
...  
Keyword(s):  
Rice Cultivar ◽  
Japonica Rice ◽  
Isogenic Line ◽  
Near Isogenic Line

scholarly journals RFLP mapping of genes conferring complete and partial resistance to blast in a durably resistant rice cultivar.

Genetics ◽  
1994 ◽  
Vol 136 (4) ◽  
pp. 1421-1434 ◽  
Author(s):  
G L Wang ◽  
D J Mackill ◽  
J M Bonman ◽  
S R McCouch ◽  
M C Champoux ◽  
...  
Keyword(s):  
Partial Resistance ◽  
Blast Resistance ◽  
Durable Resistance ◽  
Complex Trait ◽  
Rice Cultivar ◽  
Blast Disease ◽  
Rflp Markers ◽  
Japonica Rice ◽  
Qualitative Resistance ◽  
Ri Lines

Abstract Moroberekan, a japonica rice cultivar with durable resistance to blast disease in Asia, was crossed to the highly susceptible indica cultivar, CO39, and 281 F7 recombinant inbred (RI) lines were produced by single seed descent. The population was evaluated for blast resistance in the greenhouse and the field, and was analyzed with 127 restriction fragment length polymorphism (RFLP) markers. Two dominant loci associated with qualitative resistance to five isolates of the fungus were tentatively named Pi-5(t) and Pi-7(t). They were mapped on chromosomes 4 and 11, respectively. To identify quantitative trait loci (QTLs) affecting partial resistance, RI lines were inoculated with isolate PO6-6 of Pyricularia oryzae in polycyclic tests. Ten chromosomal segments were found to be associated with effects on lesion number (P < 0.0001 and LOD > 6.0). Three of the markers associated with QTLs for partial resistance had been reported to be linked to complete blast resistance in previous studies. QTLs identified in greenhouse tests were good predictors of blast resistance at two field sites. This study illustrates the usefulness of RI lines for mapping a complex trait such as blast resistance and suggests that durable resistance in the traditional variety, Moroberekan, involves a complex of genes associated with both partial and complete resistance.

A Cold-tolerant Japonica Rice Cultivar ‘Cordillera 4’ Adaptable to the Tropical Mountainous Region

2021 ◽  
Vol 33 (2) ◽  
pp. 119-124
Author(s):  
O-Young Jeong ◽  
◽  
Jeom-Sig Lee ◽  
Maurene Bombay ◽  
Gideon Torollo ◽  
...  
Keyword(s):  
Rice Cultivar ◽  
Japonica Rice ◽  
Mountainous Region ◽  
Cold Tolerant
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