옥수수 배가반수체 육종 기술: 새로운 패러다임

• 영문명: Maize Doubled Haploid Technology: A New Breeding Paradigm
• 발행기관: 한국육종학회
• 저자명: 하 반 지오이(Van Gioi Ha) 문휘(Hwi Moon) 소윤섭(Yoon-Sup So)
• 간행물 정보: 『한국육종학회지』Vol.56 No.4, 471~489쪽, 전체 19쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2024.12.01

국문 초록

Doubled haploid (DH) technology is widely used in maize breeding because of its ability to produce 100% homozygous inbred lines within a short period of time. This efficiency has made DH technology an attractive tool for maize breeders, allowing its incorporation into breeding programs. This technology also facilitates advanced breeding techniques such as genome editing and the conversion of elite inbred lines into their cytoplasmic male sterility counterparts. The successful integration of DH technology into various maize breeding programs worldwide has spurred extensive research on the genetic basis and mechanisms underlying haploid induction, leading to the identification of key quantitative trait loci (QTL) aimed at improving efficiency and reducing costs. Additionally, new phenotypic markers are being explored for use along with the R1-nj marker to enhance the accuracy of haploid seed and plant identification. Efforts are underway to identify alternatives to colchicine, a toxic and carcinogenic compound commonly used for chromosome doubling. Nondestructive methods, such as nuclear magnetic resonance, Fourier transform Raman spectroscopy, and flow cytometry, are being developed to enable fast and accurate haploid identification and automate the process for large-scale breeding programs. As these advancements improve DH technology, the maize hybrid breeding paradigm is undergoing a substantial transformation. However, several challenges remain unaddressed.

목차

서언

반수체 유도 및 유전적 기초

옥수수 반수체 유도 계통의 개발

반수체 종자의 식별

옥수수의 염색체 배가 기술

옥수수 육종에서 배가 반수체 기술의 응용

배가 반수체 기술의 과제와 전망

사사

References

키워드

doubled haploid technology maize breeding haploid induction chromosome doubling phenotypic markers