벼멸구 저항성 유전자 도입에 따른 벼 후대계통의 수량관련형질의 연관 분석

• 영문명: Association Analysis of Yield-Related Traits in Rice Following the Introduction of Brown Planthopper Resistant Genes
• 발행기관: 한국육종학회
• 저자명: 박재령(Jae-Ryoung Park) 서정환(Jeonghwan Seo) 이창민(Chang-Min Lee) 박송희(Songhee Park) 진민아(Mina Jin) 이건미(Keon Mi Lee) 정오영(O-Young Jeong) 서정필(Jung-Pil Suh) 박현수(Hyun-Su Park)
• 간행물 정보: 『한국육종학회지』Vol.56 No.4, 381~394쪽, 전체 14쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2024.12.01

국문 초록

Rapid climate change has diversified the dynamics of brown planthoppers, necessitating the development of rice cultivars with enhanced resistance. Brown planthoppers contribute to reduced grain yield and quality, and the rapid ecological changes caused by global warming are expected to exacerbate this damage. In Korea, rice cultivars resistant to brown planthoppers have primarily been bred using Bph1, bph2, and Bph18. Despite the known resistance of Bph3 to brown planthoppers, this gene is underutilized in rice breeding programs. Therefore, in this study, we aimed to analyze the association between brown planthopper resistant genes and rice agronomic traits by breeding segregated populations incorporating Bph3, Bph18, and BPH26. Segregated populations were derived from crosses between ‘Jeonju686’ (carrying Bph3 and BPH26) and ‘JJ621MR’ (carrying Bph18). Our analysis revealed that Bph18 was significantly associated with a reduced fertility rate. However, Bph3 did not significantly affect fertility-related traits. As Bph3 has been reported to confer strong resistance to brown planthoppers, it is expected to be actively utilized in future resistance breeding programs. Ultimately, maximizing the efficiency of molecular breeding techniques is expected to provide valuable insights into the development of rice cultivars with enhanced resistance to brown planthoppers.

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키워드

rice brown planthopper yield molecular breeding Bph3