Fertility Variation and Its Effect on Genetic Diversity of Seeds from a Clonal Seed Orchard of Cryptomeria japonica
2
조회
0
다운로드
0
인용
0
참고문헌
초록
Abstract
Male and female strobilus production was assessed annually over a five-year period for a clonal seed orchard of sugi (Cryptomeria japonica D. Don) in Korea. Clonal fertility and fertility variation, expressed by both sibling coefficient and coefficient of variation in strobilus production among 40 orchard clones, were reported. Fertility varied among clones and among years, producing five-year averages per ramet of 464.3 and 971.1 for female and male strobili, respectively. The correlation between female and male strobilus production was positive in each of the five years studied and statistically significant with the exception of one poor flowering year. The clonal status number (Ns), a measure of genetic diversity, was calculated based on the observed clonal fertility variation, varying from 27.6 (N = 40) in the poorest flowering year (2002) to 35.8 in the best year (2005). On average (pooled), the relative status number was 95% of the census number (N). Variation of female fertility was higher than that of male fertility for the five consecutive years, and the status numbers of female and male parents reflected this variation. The pooled Ns estimation from all five years was higher than any single year, implying that genetic diversity would increase when seeds collected from different years are pooled. Sexual asymmetry calculations showed that clonal contributions would be balanced between genders.
참고문헌 (23)
- Bila A, "Fertility variation and its effects on gene diversity in forest tree populations", pp.31~ (2000)
- Burczyk J, "Flowering and cone production variability and its effect on parental balance in a Scots pine clonal seed orchard", 54, pp.129~144 (1997)
- Choi WY, "Estimation of heritabilities and clonal contribution based on the flowering assessment in two clone banks of Pinus koraiensis S. et Z", pp.172~177 (2004)
- El-Kassaby YA, "Effect of forest tree domestication on gene pools", 13, pp.197~213 (2000), CSIRO Publishing-CABI Publishing, Canberra, Australia. Chap
- El-Kassaby YA, "The relation between reproductive phenology and reproductive output in determining the potential gametic pool profile in a Douglas- fir seed orchard", pp.827~835
- El-Kassaby YA, "Cost of reproduction in Douglas-fir", pp.1429~1432
- El-Kassaby YA, "Variation in fruitfulness in a Douglas-fir seed orchard and its effect on crop-management decisions", pp.113~121
- Eriksson G, "Flowering in a clone trial of Picea abies Karst", pp.45~
- Gomory D, "Fertility variation and flowering asynchrony on Pinus sylvestris consequences for the genetic structure of progeny in seed orchards", 174, pp.117~126 (2003)
- Kang KS, "Considerations of correlated fertility between genders on genetic diversity Pinus densiflora seed orchard as a model", 105, pp.1183~1189 (2002)
- Kang KS, "Fertility variation among clones of Korean pine and its implications on seed orchard management", 6, pp.191~200 (1999)
- Kang KS, "Fertility variation in forest tree populations", 76, pp.329~344 (2003)
- Lindgren D, "Relatedness and status number in seed orchard crops", 28, pp.276~283 (1998)
- Silvae Genet, "Variation in cone production in a clonal seed orchard of Black pine", pp.136~141
- Moriguchi Y, "Variation of paternal contribution in a seed orchard of Cryptomeria japonica determined using microsatellite markers", 34(8), pp.1683~1690 (2004)
- Namba H, "Relationship between pollen counts of Cryptomeria japonica and Cupressaceae and the severity of allergic symptoms", 50(2), pp.133~142 (2001)
- Nikkanen T, "Reproductive phenology in a Norway spruce seed orchard", 35, pp.39~53 (2001)
- Nikkanen T, "Variation in flowering abundance and its impact on the genetic diversity of grafts of Pinus sylvestris", 19, pp.35~40 (2000)
- Reynolds S, "Parental balance in Douglas-fir seed orchards-cone crop vs", pp.40~42
- Taira H, "Regeneration system and genetic diversity of Cryptomeria japonica growing at different altitudes", 27(4), pp.447~452 (1997)
- Silvae Fenn, "Clonal gametic contributions to offspring of Scots pine seed orchard", pp.99~106 (1982)
- Xie CY, "Mating system and effective pollen immigration in a Norway spruce", pp.48~52
- Yamashita T, "Comparison of two coniferous plantations in central Japan with respect to forest productivity, growth phenology and soil nitrogen dynamics", 200, pp.215~226 (2004)