Identification of Rice Accessions Having Cold Tolerance at the Seedling Stage and Development of Novel Genotypic Assays for Predicting Cold Tolerance
文献类型: 外文期刊
作者: Qi, Yongbin 1 ; Summat, Patcharaporn 2 ; Panyawut, Natjaree 2 ; Sikaewtung, Kannika 2 ; Ditthab, Khanittha 2 ; Tongmark, Keasinee 2 ; Chakhonkaen, Sriprapai 2 ; Sangarwut, Numphet 2 ; Wasinanon, Thiwawan 2 ; Kaewmungkun, Kanokwan 2 ; Muangprom, Amorntip 2 ;
作者机构: 1.Zhejiang Acad Agr Sci, Inst Crop Sci & Nucl Technol Utilizat, Hangzhou 310021, Peoples R China
2.Natl Ctr Genet Engn & Biotechnol, Thailand Sci Pk, Khlong Luang 12120, Pathum Thani, Thailand
3.Thammasat Univ, Fac Sci & Technol, Rangsit Ctr, Dept Biotechnol, Khlong Luang 12120, Pathum Thani, Thailand
4.Nadi Dist Agr Extens Off, Chamanan Rd, Prachin Buri 25220, Thailand
关键词: cold tolerance; rice germplasm; functional markers; NAC; COLD1; LOC_Os10g34840
期刊名称:PLANTS-BASEL ( 影响因子:4.658; 五年影响因子:4.827 )
ISSN:
年卷期: 2023 年 12 卷 1 期
页码:
收录情况: SCI
摘要: Rice is susceptible to cold stress at the seedling stage, which can delay growth and decrease yield. We evaluated 187 rice accessions for cold tolerance at the seedling stage and developed genotypic assays for three markers. All japonica (20/20) and 20/140 indica accessions were highly cold tolerant. Two SNP markers specific for COLD1 and LOC_Os10g34840 were practical to use by normal agarose gel. The SNP marker specific for COLD1 was highly specific for predicting cold tolerance. However, the sensitivity of this marker was low as several cold-tolerant indica accessions lacked the cold-tolerant allele. The LOC_Os10g34840 marker was slightly more sensitive than the COLD1 marker for predicting highly cold-tolerant accessions. An insertion/deletion variant in the NAC6 gene was identified as a novel cold tolerance marker. The NAC6 marker predicted more highly cold-tolerant accessions compared with the other two markers. The SNP marker specific for LOC_Os10g34840 and the NAC6 marker were present in several tested subgroups, suggesting their wide effects and distribution. The three markers combined predicted the most highly cold-tolerant accessions, indicating that the marker combination is superior for applications such as marker-assisted breeding. The cold-tolerant accessions and the genotypic marker assays will be useful for future rice breeding.
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