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Genotypic variation of yield-related traits in an irrigated rice breeding program for tropical Asia by Ata-Ul-Karim, Syed Tahir, Begum, Hasina, Lopena, Vitaliano, Borromeo, Teresita, Virk, Perminder, Hernandez, Jose E., Gregorio, Glenn B., Collard, Bertrand C. Y., Kato, Yoichiro

“…The broad-sense heritability ranged from 0.35 to 0.99 for all traits in both seasons. …”
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Development of a temperate climate-adapted indica multi-stress tolerant rice variety by pyramiding quantitative trait loci by Shin, Na-Hyun, Han, Jae-Hyuk, Vo, Kieu Thi Xuan, Seo, Jeonghwan, Navea, Ian Paul, Yoo, Soo-Cheul, Jeon, Jong-Seong, Chin, Joong Hyoun

“…Two quantitative trait loci, Sub1 (conferring submergence tolerance) and AG1 (conferring anaerobic germination), were recently pyramided into a single genetic background, without compromising any desirable agronomic traits, leading to the development of Ciherang-Sub1 + AG1 (CSA). …”
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Salt resistance of interspecific crosses of domesticated and wild rice species by Wairich, Andriele, Wember, Louisa Sophie, Gassama, Lamin J., Wu, Lin-Bo, Murugaiyan, Varunseelan, Ricachenevsky, Felipe Klein, Margis-Pinheiro, Marcia, Frei, Michael

“…Cultivated rice (Oryza sativa L.) is very sensitive to salt stress. Breeding attempts to develop salinity‐adapted rice varieties have been hampered by the quantitative nature of adaptation and limited genetic variability in cultivated rice.AimsWe aimed to explore the potential of wild rice species for improving adaptation to salinity. …”
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Developing climate-resilient, direct-seeded, adapted multiple-stress-tolerant rice applying genomics-assisted breeding by Sandhu, Nitika, Yadav, Shailesh, Catolos, Margaret, Cruz, Ma Teresa Sta, Kumar, Arvind

“…The developed lines may be released as varieties/parental lines to develop better rice varieties for direct-seeded situations or as novel breeding material to study genetic interactions.…”
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A GWAS approach to find SNPs associated with salt removal in rice leaf sheath by Neang, Sarin, de Ocampo, Marjorie, Egdane, James A., Platten, John Damien, Ismail, Abdelbagi M., Seki, Masahide, Suzuki, Yutaka, Skoulding, Nicola Stephanie, Kano-Nakata, Mana, Yamauchi, Akira, Mitsuya, Shiro

“…Thus, understanding the genetic control of the salt removal capacity in leaf sheaths will help improve the molecular breeding of salt-tolerant rice varieties and speed up future varietal development to increase productivity in salt-affected areas. …”
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Overexpression of a defensin-like gene CAL2 enhances cadmium accumulation in plants by Luo, Jin-Song, Xiao, Yan, Yao, Junyue, Wu, Zhimin, Yang, Yong, Ismail, Abdelbagi M., Zhang, Zhenhua

“…Heterologous expression of CAL2 enhanced Cd sensitivity in Arabidopsis, whereas overexpression of CAL2 had no effect on Cd tolerance in rice. …”
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Predicting agronomic traits and associated genomic regions in diverse rice landraces using marker stability by Orhobor, Oghenejokpeme I., Alexandrov, Nickolai N., Chebotarov, Dmytro, Kretzschmar, Tobias, McNally, Kenneth L., Sanciangco, Millicent D., King, Ross D.

“…To secure the world’s food supply it is essential that we improve our knowledge of the genetic underpinnings of complex agronomic traits. …”
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Contrasting tocol ratios associated with seed longevity in rice variety groups by Lee, Jae-Sung, Kwak, Jieun, Yoon, Mi-Ra, Lee, Jeom-Sig, Hay, Fiona R.

“…Both seed longevity (time for viability to fall to 50%; p50) and tocols content varied across variety groups related to the heterogeneity in the genetic architecture. Among eight types of tocol homologues, α-tocopherol and γ-tocotrienol were significantly correlated with p50 (negatively and positively, respectively). …”
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High day- and night-time temperatures affect grain growth dynamics in contrasting rice genotypes by Shi, Wanju, Yin, Xinyou, Struik, Paul C., Solis, Celymar, Xie, Fangming, Schmidt, Ralf C., Huang, Min, Zou, Yingbin, Ye, Changrong, Jagadish, Krishna S.V.

“…The findings indicate differential mechanisms leading to high day and high night temperature stress-induced loss in yield and quality. Additional genetic improvement is needed to sustain rice productivity and quality under future climates…”
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OsASR5 enhances drought tolerance through a stomatal closure pathway associated with ABA and H2O2 signaling in rice by Li, Jinjie, Li, Yang, Yin, Zhigang, Jiang, Jihong, Zhang, Minghui, Guo, Xiao, Ye, Zhujia, Zhao, Yan, Xiong, Haiyan, Zhang, Zhanying, Shao, Yujie, Jiang, Conghui, Zhang, Hongliang, An, Gynheung, Paek, Nam-Chon, Ali, Jauhar, Li, Zichao

“…Although many genes in response to drought stress have been identified, genetic improvement to drought resistance especially in food crops is showing relatively slow progress worldwide. …”
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Mapping QTLs for reproductive-stage drought resistance traits using an advanced backcross population in upland rice by Sellamuthu, Reena, Ranganathan, Chandrababu, Serraj, Rachid

“…The reproductive stage of development is the most drought sensitive, and water deficits at that time can lead to a drastic yield reduction in rice (Oryza sativa L.). …”
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Photosynthetic diffusional constraints affect yield in drought stressed rice cultivars during flowering by Lauteri, Marco, Haworth, Matthew, Serraj, Rachid, Monteverdi, Maria Cristina, Centritto, Mauro

“…Mesophyll conductance most effectively characterises the photosynthetic capacity and yield of O. sativa cultivars under both well-watered and water-deficit conditions; however, the desired attributes of high gm during optimal growth conditions and the capacity for gm to remain constant during water-deficit may be mutually exclusive. Nonetheless, future genetic and physiological studies aimed at enhancing O. sativa yield and drought stress tolerance should investigate the biochemistry and morphology of the interface between the sub-stomatal pore and mesophyll layer.…”
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Mapping of quantitative trait loci associated with reproductive-stage salt tolerance in rice by Hossain, H., Rahman, M.A., Alam, M.S., Singh, R.K.

“…Cheriviruppu is highly tolerant at the reproductive stage, while PB1 is highly sensitive at both seedling and reproductive stages. …”
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Study of flowering pattern in Setaria viridis, a proposed model species for C4 photosynthesis research by Rizal, Govinda, Acebron, Kelvin, Mogul, Reychelle, Karki, Shanta, Larazo, Nikki, Quick, William Paul

“…It is also a representative of bioenergy grasses and a model for genetic study of invasive weeds. Despite having all traits of a model species, it is difficult to cross-pollinate because its flowering behavior is not well studied. …”
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Identification of cold-tolerant breeding lines by quantitative trait loci associated with cold tolerance in rice by Jena, K.K., Kim, S.M., Suh, J.P., Yang, C.I., Kim, Y.G.

“…In this study, we assessed recombinant inbred lines (RILs) that possessed cold‐tolerance genes and/or quantitative trait loci (QTL) from the donor line IR66160‐121‐4‐4‐2 in the genetic background of a cold‐sensitive japonica cultivar, Geumobyeo. …”
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Molecular Tagging of Genes for Brown Planthopper Resistance and Earliness Introgressed From Oryza australiensis Into Cultivated Rice, O. sativa by Ishii, T., Brar, D.S., Multani, D.S., Khush, G.S.

“…Such close linkage is useful in marker-based selection while transferring BPH resistance from introgression line into other elite breeding lines. Introgression at the molecular level indicates that the mechanism of alien gene transfer is probably genetic recombination through crossing over rather than substitution of whole or large segment of chromosomes of wild species.Key words: molecular tagging, alien gene introgression, rice, wild species, brown planthopper resistance.…”
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Gas-Exchange Traits And Their Relationship To Water-Use Efficiency Of Grain-Sorghum by Peng, Shaobing, Krieg, Daniel R.

“…The purpose of this experiment was to determine whether genetic variation in gas exchange traits reflects differences among sorghum genotypes [Sorghum bicolor (L.) …”
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Implication of Fatty Acids and Seed Dormancy in a New Screening Procedure for Cold Tolerance in Rice by Majumder, M.K., Seshu, D.V., Shenoy, V.V.

“…Developing a suitable screening technique to identify appropriate genetic donors, and segregants is a requisite to the successful incorporation of cold tolerance into high yielding, semidwarf rice (Oryza sativa L.) cultivars. …”
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Comparison Between Free-Choice and No-Choice Seedling Bulk Tests for Evaluating Resistance of Rice Cultivars to the Whitebacked Planthopper by Saxena, R.C., Khan, Z.R.

“…The resistance scores of 10 genetically diverse cultivars—‘Muskhan 41’ (Wbph 1), ‘N22’ (Wbph 1), ‘N32’ (Wbph 1), ‘ARC 10239’ (Wbph 2), ‘ADR 52’ (Wbph 3), ‘Podiwi A8’ (wbph 4), ‘Colombo’ (Wbph 2 + 1 recessive ?)…”
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Local business capacity to scale new hybrid maize seeds: Insights from a decade of tracking sales in Mexico by Donovan, Jason A., Peña Castellon, Carmen Meliza, Rutsaert, Pieter

“…In Mexico, between 2011 and 2020, dozens of maize SMEs obtained new genetic material through a hybrid maize breeding program funded by the Mexican government and led by the International Maize and Wheat Improvement Center (CIMMYT). …”
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