Earticle

초록

영어

This study was conducted to test the significant difference of fertility variation among families and to select superior families for acorn production in the breeding seedling seed orchards (BSSOs) of Quercus acuta and Quercus glauca. The seed orchards were located in Jeju island and established by seedlings raised from selected parents for genetic testing in 2006. In the spring of 2021, the numbers of female and male flower were counted from 5 to 10 individuals per family in the BSSOs. To test statistical significance of which parameter is not satisfied through the normality test, we used a nonparametric analysis. Correlation analysis was performed to quantify the association between female and male flower production. As the results, the significant difference of flower production among families was found in both seed orchards. The averages of female flower production were 65.3 and 181.9 in Q. acuta and Q. glauca. The positive Spearman’s rank correlation was existed between male and female flower production. Broad-sense heritability on female and male flower production were 0.191 and 0.147 in Q. acuta, and 0.285 and 0.068 in Q. glauca, respectively. Sexual asymmetry (e.g., maleness index) between female and male, and contribution variation among families (e.g., parental balance) were analyzed to find reasonable alternatives in the management of seed orchards. Effective population size of seed crops was predicted as a concept of status number. Loss of gene diversity (accumulation of group coancestry) would not be alarming in the BSSOs. Our results would be helpful to select breeding materials for establishing new seed orchards and to supply genetically improved seeds of evergreen oaks, which is one of the backbones of the strategy of carbon sink in the 2050 Carbon Neutrality of Korea Forest Service.

목차

Abstract
Introduction
Materials and Methods
Seed orchards and flowering survey
Statistical analysis and heritability estimation
Status number and gene diversity
Results and Discussion
Female and male flower production
Analysis of variance and estimation of heritability
Maleness index and parental cumulative curve
Estimation of status number and gene diversity
Acknowledgements
References

키워드

저자

• Koeun Jeon [ Department of Forest Sciences, Seoul National University, Seoul 08826, Republic of Korea ]
• Hee Seung Ro [ Department of Forest Sciences, Seoul National University, Seoul 08826, Republic of Korea ]
• Ye-Ji Kim [ Department of Agriculture, Forestry and Bioresources, Seoul National University, Seoul 08826, Republic of Korea ]
• Da-Eun Gu [ Department of Agriculture, Forestry and Bioresources, Seoul National University, Seoul 08826, Republic of Korea ]
• Ji-Min Park [ Department of Agriculture, Forestry and Bioresources, Seoul National University, Seoul 08826, Republic of Korea ]
• Sungryul Ryu [ Department of Seed and Seedling Management, National Forest Seed Variety Center, Chungju 27495, Republic of Korea ]
• Kyu-Suk Kang [ Department of Agriculture, Forestry and Bioresources, Seoul National University, Seoul 08826, Republic of Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Journal of Forest and Environmental Science [산림과학연구]

• 간기

  계간

• pISSN

  2288-9744

• eISSN

  2288-9752

• 수록기간

  1981~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 526 DDC 634