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Integrated Genome-Wide Association Studies to Dissect Natural Variation for Magnesium Ion Contents in Rice Germplas
벼 핵심집단의 마그네슘 함량 관련 통합 전장유전체 분석
Korean J. Breed. Sci. 2017;49(3):141-149
Published online September 1, 2017
© 2017 Korean Society of Breeding Science.

Eun-Beom Heo1, Ji-Min Yoo1, Won-Do Lee2, Sang-Ho Chu3, Kyu-Won Kim3, Yoo-Hyun Cho2, and Yong-Jin Park1,3*
허은범1, 유지민1, 이원도2, 추상호3, 김규원3, 조유현2, 박용진1,3*

1Department of Plant resources, Kongju National University, Yesan 32439, Korea2Seedpia Inc. ,85Maesil-ro, Gwonseon-gu, Suwon-si, Gyeonggi-do, Korea3Center of Crop Breeding on Omics and Artificial Intelligence, Kongju National University, Yesan 32439, Korea
1공주대학교 산업과학대학 식물자원학과, 2주식회사 시드피아, 3공주대학교 작물 오믹스지능육종 연구센터
Abstract
Magnesium is important not only for the growth of rice itself, but also as an essential micronutrient component of half of the world population who are supported by rice. Here, we performed genome-wide association study (GWAS) with high-resolution density SNPs to identify natural allelic variation in Mg2+ increase from rice set, which is derived from a total 24,368 rice germplasms. The range of the concentration and distribution of Mg2+ in 295 core accessions of brown rice grain were wide, from 18.17mg/L to 57.11mg/L, with mean 39.71mg/L. In particular, GWAS result shows that the high peak found on chromosomes 3 and 11. The new natural variants identified through haplotyping analysis would be useful to develop new rice varieties with improved storage ability of the valuable mineral through the future molecular breeding.
Keywords : GWAS, Core-collection, Rice, Mg2+, Haplotype


December 2018, 50 (4)
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