학술논문
Genetic Diversity and Association Analyses of Chinese Maize Inbred Lines Using SSR Markers
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- 영문명
- 발행기관
- 한국육종학회
- 저자명
- Yin Vathana Kyu Jin Sa Su Eun Lim Ju Kyong Lee
- 간행물 정보
- 『Plant breeding and biotechnology』Vol.7 No.3, 186~199쪽, 전체 14쪽
- 주제분류
- 농수해양 > 기타농수해양
- 파일형태
- 발행일자
- 2019.09.01
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국문 초록
영문 초록
We selected 68 Chinese maize inbred lines to understand the genetic diversity, population structure, and marker-trait associations for eight agronomic traits and 50 simple sequence repeats (SSRs) markers. In this study, effective traits, such as days of anthesis (DA), days of silking (DS), ear height (EH), plant to ear height ratio (ER), plant height (PH), and leaf width (LW) were divided into PC1 and PC2 by PCA analysis for maize inbred lines. Genetic diversity analysis revealed a total of 506 alleles at 50 SSR loci. The mean number of alleles per locus was 10.12. The averages of genetic diversity (GD) and polymorphic information content (PIC) values were 0.771 and 0.743, respectively. Based on a membership probability threshold of 0.80, the population structure revealed that the total inbred lines were divided into three major groups with one admixed group. A marker-trait association using Q + K MLM showed that nine SSR markers (bnlg1017, umc2041, umc2400, bnlg105, umc1229, umc1250, umc1066, umc2092, and umc1426) were related with seven agronomic traits. Among these SSR markers, eight SSR markers were associated with only one agronomic trait (DA, DS, ER, LL, LW, PH, and ST), whereas one SSR marker (umc1229) was associated with two agronomic traits (DA and ST). These results will help in optimizing the choice of inbred lines for cross combinations, as well as in selecting markers for further maize breeding programs.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
ACKNOWLEDGEMENTS
REFERENCES
해당간행물 수록 논문
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- Genetic Diversity and Association Analyses of Chinese Maize Inbred Lines Using SSR Markers
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