Climate Change Data Portal
| DOI | 10.1007/s11056-024-10034-0 |
| Mitochondrial DNA lineages and genetic variation of early growth traits in the Argentinean breeding population of Pinus ponderosa Douglas ex C. Lawson | |
| 发表日期 | 2024 |
| ISSN | 0169-4286 |
| EISSN | 1573-5095 |
| 英文摘要 | In the Andean-Patagonian region of Argentina, Pinus ponderosa Douglas ex C. Lawson is the most widely cultivated forest tree species. Its breeding program, started in 1998, is now progressing towards the establishment of 1.5 generation clonal seed orchards. Considering recent advances in the phylogeny and taxonomy of the species, it is necessary to delve deeper into the genetic variation of the breeding population. Here, we first aim to address a previously unresolved question concerning the putative genetic lineages (varieties) of P. ponderosa that were introduced from the USA. We assessed this question through the molecular characterization of the nad1 second intron minisatellite of the mitochondrial genome of 61 plus trees planted in 1.0 clonal seed orchards, followed by Sanger sequencing to determine mtDNA haplotypes. Then, we conducted a nursery common garden trial to determine the relative contribution of the genetic factors (lineages and clones) to the variation in early growth traits, which may reflect adaptation across native geographic ranges and are also important for nursery stock production. We found three mtDNA variants, which correspond to haplotypes H1, H5 and H8, form the North-West native range of the species. In general, the variation in early seedling growth traits was not attributable to the haplotypic groups; instead, variation among clones was high and heritable. Considering the initial performance of the breeding population, it appears feasible to manage 1.0 and 1.5 clonal seed orchards by maintaining sub-specific taxa mixed together, while assessing the potential impact of intra-specific hybridization and field performance of progeny for timber production and resilience to climate change. |
| 英文关键词 | North-American conifers; Subsection Ponderosae; Exotic tree breeding |
| 语种 | 英语 |
| WOS研究方向 | Forestry |
| WOS类目 | Forestry |
| WOS记录号 | WOS:001176411300001 |
| 来源期刊 | NEW FORESTS
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/299851 |
| 作者单位 | Instituto Nacional de Tecnologia Agropecuaria (INTA); Instituto Nacional de Tecnologia Agropecuaria (INTA); Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); Instituto Nacional de Tecnologia Agropecuaria (INTA) |
| 推荐引用方式 GB/T 7714 | . Mitochondrial DNA lineages and genetic variation of early growth traits in the Argentinean breeding population of Pinus ponderosa Douglas ex C. Lawson[J],2024. |
| APA | (2024).Mitochondrial DNA lineages and genetic variation of early growth traits in the Argentinean breeding population of Pinus ponderosa Douglas ex C. Lawson.NEW FORESTS. |
| MLA | "Mitochondrial DNA lineages and genetic variation of early growth traits in the Argentinean breeding population of Pinus ponderosa Douglas ex C. Lawson".NEW FORESTS (2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
