气候变化领域集成服务门户(CCPortal): Spatiotemporal variation in mating system and genetic diversity of Araucaria angustifolia: Implications for conservation and seed collection

CCPortal

DOI	10.1016/j.foreco.2020.118716
	Spatiotemporal variation in mating system and genetic diversity of Araucaria angustifolia: Implications for conservation and seed collection
	Costa N.C.F.D.; Stedille L.I.B.; Lauterjung M.B.; Montagna T.; Candido-Ribeiro R.; Bernardi A.P.; Mantovani A.; Reis M.S.D.; Nodari R.O.
发表日期	2021
ISSN	0378-1127
卷号	481
英文摘要	Understanding spatiotemporal variations in genetic diversity and mating system can allow policymakers to better support actions towards conservation and management of plant populations. However, multiyear studies are still scarce for many long-lived tree species. Therefore, we herein analyze how genetic diversity, genetic structure and mating system of Araucaria angustifolia vary within and among populations, generations (adults and seed cohorts) and years. We evaluated two A. angustifolia populations occurring in forest-grassland landscapes, one of them for three years. Differences in Ho and He were observed among generations and populations, with significant fixation indexes for all adult and seed cohorts evaluated. Pairwise FST values showed that genetic divergences were greater between populations, followed by those among years, and, finally, less relevant values among generations. No significant spatial genetic structure was found in either population. Paternity correlation, number of pollen donors, coancestry and proportion of half and full-sibs may vary over the years in A. angustifolia. In practical terms, the present study demonstrates how recommendations for seed collection may change according to the evaluated year, such as the number of seed trees, which ranged from 42 to 48. Furthermore, multiyear analyses allow a more comprehensive understanding of the genetic aspects for a long-lived tree species. Finally, we present and discuss these aspects and their variations in space, time and between reproductive events, including recommendations for seed collection. © 2020 Elsevier B.V.
英文关键词	Araucaria forests; Grasslands; Isolated trees; Small patches; Spatial genetic structure
语种	英语
scopus关键词	Biodiversity; Plants (botany); Genetic divergence; Genetic diversity; Genetic structure; Plant population; Policy makers; Pollen donors; Spatial genetic structure; Spatio-temporal variation; Forestry; coniferous tree; conservation management; detection method; genetic structure; genetic variation; grassland; reproductive strategy; seed set; seed size; spatiotemporal analysis; Araucaria; Biodiversity; Collection; Conservation; Forestry; Seed Trees; Systems; Variations; Araucaria; Araucaria angustifolia
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154802
作者单位	Núcleo de Pesquisas em Florestas Tropicais (NPFT), Universidade Federal de Santa Catarina, Rodovia Admar Gonzaga 1346, Florianópolis, Brazil; Uso e Conservação dos Recursos Florestais (UCRF), Universidade do Estado de Santa Catarina, Avenida Luís de Camões 2090, Lages, Brazil; Department of Forest and Conservation Sciences, University of British Columbia, 2424 Main Mall, Vancouver, BC, Canada
推荐引用方式 GB/T 7714	Costa N.C.F.D.,Stedille L.I.B.,Lauterjung M.B.,et al. Spatiotemporal variation in mating system and genetic diversity of Araucaria angustifolia: Implications for conservation and seed collection[J],2021,481.
APA	Costa N.C.F.D..,Stedille L.I.B..,Lauterjung M.B..,Montagna T..,Candido-Ribeiro R..,...&Nodari R.O..(2021).Spatiotemporal variation in mating system and genetic diversity of Araucaria angustifolia: Implications for conservation and seed collection.Forest Ecology and Management,481.
MLA	Costa N.C.F.D.,et al."Spatiotemporal variation in mating system and genetic diversity of Araucaria angustifolia: Implications for conservation and seed collection".Forest Ecology and Management 481(2021).