Identification of Genes Related to Cold Tolerance and a Functional Allele That Confers Cold Tolerance

Plant Physiology
Ning XiaoAihong Li

Abstract

Cold stress is a major factor limiting rice (Oryza sativa) production worldwide, especially at the seedling and booting stages. The identification of genes associated with cold tolerance (CT) in rice is important for sustainable food production. Here, we report the results of a genome-wide association study to identify the genetic loci associated with CT by using a 1,033-accession diversity panel. We identified five CT-related genetic loci at the booting stage. Accessions carrying multiple cold-tolerant alleles displayed a higher seed-setting rate than did accessions that had no cold-tolerant alleles or carried a single allele. At the seedling stage, eight genetic loci related to CT have been identified. Among these, LOC_Os10g34840 was identified as the candidate gene for the qPSR10 genetic locus that is associated with CT in rice seedlings. A single-nucleotide polymorphism (SNP), SNP2G, at position 343 in LOC_Os10g34840 is responsible for conferring CT at the seedling stage in rice. Further analysis of the haplotype network revealed that SNP2G was present in 80.08% of the temperate japonica accessions but only 3.8% of the indica ones. We used marker-assisted selection to construct a series of BC4F3 near-isogenic lines possessi...Continue Reading

Citations

Feb 28, 2019·Plant Biotechnology Journal·Citao LiuChengcai Chu
Jan 11, 2020·Plant, Cell & Environment·Yufang XuShanguo Yao
Nov 14, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Qin WangXuehui Huang
Feb 28, 2019·Proceedings of the National Academy of Sciences of the United States of America·Donghai MaoCaiyan Chen
Oct 11, 2019·Breeding Science·Kenji FujinoRyota Kaji
Feb 23, 2020·International Journal of Molecular Sciences·Shukun JiangWenhua Li
Nov 19, 2020·International Journal of Molecular Sciences·Seher YolcuByeong-Ha Lee
Feb 15, 2021·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Q YiPedro Revilla
Jul 2, 2021·Cellular and Molecular Life Sciences : CMLS·Saleh AlseekhAlisdair R Fernie
Dec 7, 2021·Frontiers in Genetics·Muhammad Kazim AliYa-Wen Zeng

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