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http://dx.doi.org/10.5352/JLS.2020.30.10.844

QTL Analysis of Rice Heading-related Genes Using Cheongcheong/Nagdong Doubled Haploid Genetic Map  

Jang, Yoon-Hee (School of Applied Biosciences, College of Agriculture and Life Science, Kyungpook National University)
Park, Jae-Ryoung (School of Applied Biosciences, College of Agriculture and Life Science, Kyungpook National University)
Kim, Kyung-Min (School of Applied Biosciences, College of Agriculture and Life Science, Kyungpook National University)
Publication Information
Journal of Life Science / v.30, no.10, 2020 , pp. 844-850 More about this Journal
Abstract
Disaster-related extreme weather is rapidly increasing due to climate change. In Korea, typhoons accompanied by rainfall usually approach in August and September, causing great damage. The purpose of this study is to find a gene that regulates the heading date of rice in order to avoid loss of harvest from climate change and typhoons. Cheongcheong/Nagdong doubled haploid (CNDH) was used as the plant material to investigate the location of heading-related genes using QTL and sequence analysis by cloning the gene. In the distribution chart, the heading dates, culm lengths, panicle lengths, numbers of panicles, and 1,000-grain weights all have normal distributions. QTL analysis found 13 contigs on chromosome 8. One QTL, named qHd8, was detected on chromosome 8. The range at qHd8 was approximately 7.7 cM, with RM72 and RM404 markers near the peak. There were 13 contigs and 1 ORF. Protein sequence analysis showed that rice was similar to Os08g0341700, AtSFH13, and AtSFH7 proteins. Os08g0341700, which is involved in signal transduction, is similar to phosphatidylinositol transfer-like protein II, and complete information is not available, but it is believed to play a role in the phosphatidylinositol-specific signaling pathway related to Sec14P.
Keywords
Heading date; QTL; rice; sequence analysis;
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