气候变化领域集成服务门户(CCPortal): Impact of a tree improvement program on the genetic diversity of sugi (Cryptomeria japonica D Don) plantations

CCPortal

DOI	10.1016/j.foreco.2019.06.023
	Impact of a tree improvement program on the genetic diversity of sugi (Cryptomeria japonica D Don) plantations
	Iwasaki H.; Uchiyama K.; Kimura M.; Saito Y.; Hakamata T.; Ide Y.
发表日期	2019
ISSN	0378-1127
起始页码	466
结束页码	473
卷号	448
英文摘要	The main purpose of this study was to investigate how a shift in seed sources owing to the implementation of a tree improvement program affected the genetic diversity of plantation forests. We investigated the genetic diversity and pairwise relatedness between individuals in sugi (Cryptomeria japonica D Don) plantations established before (“Pre-B”) and after (“Post-B”) the start of the Japanese tree improvement program. Based on SSR and SNP markers, most genetic diversity indices and the degree of relatedness within plantations were comparable between “Pre-B” and “Post-B”. However, there were large variations in the proportion of closely related pairs within plantations in both groups. Additionally, in “Post-B” plantations, parental contributions greatly diverged among plus-tree clones. The results of this study indicated that the shift in the seed sources, caused by the implementation of a tree improvement program, did not have a significant effect on the genetic diversity of plantations. However, the results also indicated that the degree of relatedness within plantations varied significantly according to how seeds are collected regardless of the type of seed sources. Furthermore, it was also revealed that genetic diversity in “Post-B” plantations could have decreased because of a deviation from equal parental contributions in seed orchards. Our results indicated that effective management of seed orchards is important to secure the genetic diversity of plantation forests. © 2019 Elsevier B.V.
语种	英语
scopus关键词	Biodiversity; Forestry; Orchards; Cryptomeria japonica D don; Effective management; Genetic diversity; Plantation forests; Plus tree clone; Seed orchard; Seed source; Tree Improvement Program; Seed; coniferous tree; genetic marker; genetic variation; orchard; plantation forestry; relatedness; Biodiversity; Computer Programs; Forestry; Orchards; Plantations; Trees; Upgrading; Cryptomeria japonica
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/155863
作者单位	Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1, Yayoi, Bunkyo, Tokyo, 113-8657, Japan; Department of Forest Molecular Genetics and Biotechnology, Forestry and Forest Products Research Institute, Matsunosato 1, Tsukuba, Ibaraki 305-8687, Japan; Forestry and Forest Products Research Institute, Forest Tree Breeding Center, Hitachi, Ibaraki 319-1301, Japan; Shizuoka Prefectural Research Institute of Agriculture and Forestry, Forestry and Forest Products Research Center, 2542-8 Negata, Hamakita, Hamamatsu, Shizuoka 434-0016, Japan
推荐引用方式 GB/T 7714	Iwasaki H.,Uchiyama K.,Kimura M.,et al. Impact of a tree improvement program on the genetic diversity of sugi (Cryptomeria japonica D Don) plantations[J],2019,448.
APA	Iwasaki H.,Uchiyama K.,Kimura M.,Saito Y.,Hakamata T.,&Ide Y..(2019).Impact of a tree improvement program on the genetic diversity of sugi (Cryptomeria japonica D Don) plantations.Forest Ecology and Management,448.
MLA	Iwasaki H.,et al."Impact of a tree improvement program on the genetic diversity of sugi (Cryptomeria japonica D Don) plantations".Forest Ecology and Management 448(2019).