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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 1,403 - 1,411 (9page)
- DOI
- 10.1007/s13258-021-01169-x
이용수
초록· 키워드
오류제보하기
Background Genome wide association studies (GWAS) have been widely used to identify QTLs underlying quantitative traits in humans and animals, and they have also become a popular method of mapping QTLs in many crops, including maize.
Advances in high-throughput genotyping technologies enable construction of high-density linkage maps using SNP markers.
Objectives High-density genetic mapping must precede to fnd molecular markers associated with a particular trait. The objectives of this study were to (1) construct a high-density linkage map using SNP markers and (2) detect the QTLs for grain yield and quality related traits of the Mo17/KW7 RIL population.
Methods In this study, two parental lines, Mo17 (normal maize inbred line) and KW7 (waxy inbred line) and 80 F7:8 lines in the Mo17/KW7 RIL population were genotyped using the MaizeSNP50 BeadChip, an Illumina BeadChip array of 56,110 maize SNPs. Marker integration and detection of QTLs was performed using the inclusive composite interval mapping (ICIM) method within the QTL IciMapping software.
Results This study was genotyped using the Illumina MaizeSNP50 BeadChip for maize Mo17/KW7 recombinant inbred line (RIL) population. The 2904 SNP markers were distributed along all 10 maize chromosomes. The total length of the linkage map was 3553.7 cm, with an average interval of 1.22 cm between SNPs. A total of 18 QTLs controlling eight traits were detected in the Mo17/KW7 RIL population. Three QTLs for plant height (PH) were detected on chromosomes 4 and 8 and showed from 16.01% (qPH8) to 19.85% (qPH4a) of phenotypic variance. Five QTLs related to ear height (EH) were identifed on chromosomes 3, 4, and 6 and accounted for 3.79% (qEH6) to 27.57% (qEH4b) of phenotypic variance. Five QTLs related to water content (WC) on chromosomes 1, 4, 8, and 9 accounted for 9.55% (qWC8b) to 23.30% (qWC4) of phenotypic variance. One QTL (qAC9) relating to amylose content (AC) on chromosome 9 showed 82.10% of phenotypic variance.
Conclusions The high-density linkage map and putative QTLs of the maize RIL population detected in this study can be efectively utilized in waxy and normal maize breeding programs to facilitate the selection process through marker-assisted selection (MAS) breeding programs.
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참고문헌 (63)
참고문헌 신청
Alvi S / 2005 / To clone or not to clone plant QTL : present and future challenges / Trends Plant Sci 10:297~304
Andrés-Colás N / 2018 / Expression of the intracellular COPT3-mediated Cu transport is temporally regulated by the TCP16 transcription factor / Front Plant Sci 9:910
Bao JD / 2012 / Identifcation of glutinous maize landraces and inbred lines with altered transcription of waxy gene / Mol Breed 30:1707~1714
Beavis WD / 1991 / Quantitative trait loci for plant height in four maize populations and their associations with qualitative genetic loci / Theor Appl Genet 83:141~145
Cai H / 2012 / Identifcation of QTLs for plant height, ear height and grain yield in maize(Zea mays L. )in response to nitrogen and phosphorus supply / Plant Breed 131:502~510
Andrés-Colás N / 2018 / Expression of the intracellular COPT3-mediated Cu transport is temporally regulated by the TCP16 transcription factor / Front Plant Sci 9:910
Bao JD / 2012 / Identifcation of glutinous maize landraces and inbred lines with altered transcription of waxy gene / Mol Breed 30:1707~1714
Beavis WD / 1991 / Quantitative trait loci for plant height in four maize populations and their associations with qualitative genetic loci / Theor Appl Genet 83:141~145
Cai H / 2012 / Identifcation of QTLs for plant height, ear height and grain yield in maize(Zea mays L. )in response to nitrogen and phosphorus supply / Plant Breed 131:502~510
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