QTL Mapping for Heading Date and Yield-Related Traits in a Doubled Haploid Population Derived from Two Korean Wheat Cultivars

• 영문명: QTL Mapping for Heading Date and Yield-Related Traits in a Doubled Haploid Population Derived from Two Korean Wheat Cultivars
• 발행기관: 한국육종학회
• 저자명: 홍수민 김경민 최창현 조성우 박철수 모영준
• 간행물 정보: 『Plant breeding and biotechnology』Vol.11 No.3, 197~207쪽, 전체 11쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2023.09.30

영문 초록

Understanding the genetics underlying heading date and yield-related traits is essential in wheat breeding formaximizing productivity under different environments. Using doubled haploid lines derived from two Korean wheat cultivars, weidentified seven stable quantitative trait loci (QTLs) for yield-related traits, i.e., days to heading date (QDhd.jbnu-3B, QDhd.jbnu-6B,and QDhd.jbnu-7D), culm length (QCl.jbnu-6A), thousand kernel weight (QTkw.jbnu-6A), kernels per spike (QKps.jbnu-3B) and testweight (QTw.jbnu-1A). Compared to the lines carrying the allele for late heading, those carrying the allele for early heading atQDhd.jbnu-3B, QDhd.jbnu-6B, and QDhd.jbnu-7D headed 3.1, 2.0, and 1.7 days earlier, respectively. Interestingly, when the allelesfor early heading at the three QTLs were accumulated, heading date was accelerated by approximately one week, indicating that theseQTLs provide useful genetic resources to fine-tune heading date. However, as the alleles for early heading at all three QTLs wereassociated with decreased kernels per spike, caution is required when deploying them to minimize the negative impacts on yield. Ourstudy provides useful information for developing wheat cultivars with optimal heading date and enhanced productivity.

목차

INTRODUCTION

MATERIALS AND METHODS

RESULTS

DISCUSSION

AUTHOR CONTRIBUTIONS

ACKNOWLEDGEMENTS

CONFLICT OF INTEREST

DATA AVAILABILITY STATEMENT

REFERENCES

키워드

Yield Heading date QTL mapping Wheat