Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.01.009 |
Genetic diversity of Norway spruce (Picea abies (L.) Karst.) seed orchard crops: Effects of number of parents, seed year, and pollen contamination | |
Sonstebo, J. H.1; Tollefsrud, M. M.1; Myking, T.1; Steffenrem, A.1,2; Nilsen, A. E.1; Edvardsen, O. M.2; Johnskas, O. R.2; El-Kassaby, Y. A.3 | |
2018-03-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 411页码:132-141 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway; Canada |
英文摘要 | Seed from orchards, established from breeding programs, often dominate the planting stock in economically important tree species, such as Norway spruce. The genetic diversity in seed orchards' crops depends on effective population size which in turn is affected by many factors such as: number of parents in the orchard, seed orchards' design, fecundity, and pollen contamination. Even though seed orchards' seed is extensively used over large regions, very few studies have addressed how well their crops reflect the genetic diversity present in the regions where they are planted. Here we have investigated the genetic diversity (by means of 11 microsatellites) of two Norway spruce seed orchard populations with different number of parents (60 and 25) and compared this with seed crops collected in the semi natural forest and natural unmanaged populations. We found that the ratio between the effective population size (Ne) and actual number of parents (N) varied between 0.60 and 0.76 in the orchards' seedlots. A reduction in genetic diversity (mainly allelic richness) was detected in a few seedlots, mainly where the number of parents was low. Our results also show that pollen contamination play an important role in maintaining the genetic diversity in orchards' seedlots, particularly when the number of parents is low. The population genetic structure among seed orhcards and natural populations is shallow suggesting that regeneration with seed from current seed orchards will have limited effect on the overall genetic diversity. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426409100014 |
WOS关键词 | EFFECTIVE POPULATION-SIZE ; MULTILOCUS GENOTYPE DATA ; DOUGLAS-FIR ; LINKAGE DISEQUILIBRIUM ; REPRODUCTIVE PHENOLOGY ; NATURAL-POPULATIONS ; ALLELE FREQUENCIES ; GLACIAL SURVIVAL ; BRITISH-COLUMBIA ; N-E |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23415 |
专题 | 气候变化 |
作者单位 | 1.Norwegian Inst Bioecon Res, Pb 115, N-1431 As, Norway; 2.Norwegian Forest Seed Ctr, Pb 118, N-2301 Hamar, Norway; 3.Univ British Columbia, Fac Forestry, Dept Forest & Conservat Sci, Vancouver, BC V6T 1Z4, Canada |
推荐引用方式 GB/T 7714 | Sonstebo, J. H.,Tollefsrud, M. M.,Myking, T.,et al. Genetic diversity of Norway spruce (Picea abies (L.) Karst.) seed orchard crops: Effects of number of parents, seed year, and pollen contamination[J]. FOREST ECOLOGY AND MANAGEMENT,2018,411:132-141. |
APA | Sonstebo, J. H..,Tollefsrud, M. M..,Myking, T..,Steffenrem, A..,Nilsen, A. E..,...&El-Kassaby, Y. A..(2018).Genetic diversity of Norway spruce (Picea abies (L.) Karst.) seed orchard crops: Effects of number of parents, seed year, and pollen contamination.FOREST ECOLOGY AND MANAGEMENT,411,132-141. |
MLA | Sonstebo, J. H.,et al."Genetic diversity of Norway spruce (Picea abies (L.) Karst.) seed orchard crops: Effects of number of parents, seed year, and pollen contamination".FOREST ECOLOGY AND MANAGEMENT 411(2018):132-141. |
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