미국 USDA에서 도입한 수박 유전자원의 특성

• 영문명: Characterization of Watermelon (Citrullus lanatus) Accessions Introduced from USDA
• 발행기관: 한국육종학회
• 저자명: 이경준(Kyung Jun Lee) 이정로(Jung-Ro Lee) 조규택(Gyu-Taek Cho) 신명재(Myoung-Jae Shin) 김성훈(Seong-Hoon Kim) 이수경(Sookyeong Lee) 한세희(Sea-Hee Han) 현도윤(Do Yoon Hyun)
• 간행물 정보: 『한국육종학회지』Vol.51 No.4, 357~366쪽, 전체 10쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2019.11.30

영문 초록

In this study, watermelon accessions introduced from the USDA were characterized for 12 morphological characteristics of leaf, flower, fruit, and seed, according to the National Agrobiodiversity Center descriptor list. In addition, to confirm the genetic composition of each watermelon accession, genetic profiling was performed using 20 simple sequence repeat (SSR) markers. A total of 154 watermelon accessions from the USDA were collected from 31 different countries, among which, 12.3% (19 accessions) were from Turkey. Morphological characterization revealed that the accessions displayed a large diversity. Genetic profiling using 20 SSR markers showed that six accessions (K192117, K192028, K193400, K192376, K192499, and K192800) were expected to be inbred lines among the 154 watermelon accessions. The 12 characters scored were analyzed using discriminant analysis of principal components (DAPC). The result revealed 68.1% of the total variability and indicated variations among accessions, mainly based on fruit stripes and fruit shape along the longitudinal section. The accessions were divided into eight groups according to DAPC, although the geographical origin was not a great source for the grouping. Our results will be helpful for the efficient management of germplasms and in understanding and selecting watermelon accessions for the breeding process.

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키워드

watermelon morphological variation discriminant analysis of principal components