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Comparison of the Diversity of East Asian Oat (Avena sativa L.) Genetic Resources by Origins, Considering Major Nutritional Ingredients and Agronomic Traits
주요영양성분과 농업적 특성 분석을 통한 한중일 귀리(Avena sativa L.) 유전자원의 원산지별 다양성 비교
Korean J Breed Sci 2019;51(1):9-19
Published online March 1, 2019
© 2019 Korean Society of Breeding Science.

Sukyeung Lee1, Hyemyeong Yoon1, Myung-chul Lee1, Sejong Oh1, Muhammad Rauf1, On sook Hur1, Na Young Ro1, Jungyoon Yi1, Do yoon Hyun1, Gyu Taek Cho1, Hocheol Ko2, and Yu-Mi Choi1*
이수경1, 윤혜명1, 이명철1, 오세종1, 무함마드 라우프1, 허온숙1, 노나영1, 이정윤1, 현도윤1, 조규택1, 고호철2, 최유미1*

1National Agrobiodiversity Center, NAS, RDA, Jeonju 54874, Republic of Korea
2Headquarters, RDA, Jeonju 54875, Republic of Korea
1국립농업과학원 농업유전자원센터, 2농촌진흥청
Correspondence to: *(E-mail: cym042@korea.kr, Tel: +82-63-238-4911, Fax: +82-63-238-4909)
Received January 17, 2019; Revised January 21, 2019; Accepted February 12, 2019.
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Oats are known for their abundance of quality proteins and lipids compared to those of other grain crops; they especially contain a large amount of good quality fibers, including β-glucan. The Korean domestic consumption of oats is rapidly increasing due to their high nutritional value. However, the research for functional food breeding material has been insufficient because oats have been focused on as feed. Therefore, this study aimed to evaluate the agronomic traits and important nutritional ingredients, including β-glucan, protein, lipid, fiber, and dietary fiber, of 142 oat germplasms from Korea, China, and Japan, which are maintained in the National Agrobiodiversity Center. In addition, the diversity by origin of the germplasms was analyzed based on their agronomic traits. For the agronomic characteristics, Korean oat germplasms were on average headed and matured earlier than the Chinese and Japanese ones. Seven accessions, including IT151107, were matured before mid-June, which makes double cropping possible in the Southern region of Korea. In the diversity analysis by origin based on quantitative agronomic traits, Korean oat germplasms were in the distinguished group compared to Chinese and Japanese germplasms. Oat germplasm had a wider range of main ingredients compared to that of Korean domestic oat cultivars. However, Chinese germplasms had a significantly higher β-glucan content, while Korean germplasms had significantly higher crude protein, crude lipid, and crude fiber contents, than did other germplasms from other origins. Dietary fiber contents showed no significant differences between origins. IT129802 (China), IT166594 (Korea), IT166584 (Korea), IT151108 (Korea), and IT129798 (China) showed the highest β-glucan, protein, lipid, fiber, and dietary fiber contents, respectively. These selected oat germplasms can be superior breeding materials for various functional and agronomic purposes.
Keywords : oat, East Asia, genetic resources, nutritional ingredients, agronomic traits


March 2019, 51 (1)
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