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题名: Intraspecific crossing of Saccharina japonica using distantly related unialgal gametophytes benefits kelp farming by improving blade quality and productivity at Sanggou Bay, China
作者: Zhao, Xiao Bo1; Pang, Shao Jun2; Liu, Feng2; Shan, Ti Feng2; Li Jing(李静)2,3; Gao, Su Qin2; Kim, Hyung Geun4
刊名: JOURNAL OF APPLIED PHYCOLOGY
出版日期: 2016-02-01
卷号: 28, 期号:1, 页码:449-455
关键词: Kelp ; Seaweed farming ; Saccharina japonica ; Laminariales ; Intraspecific crossing
DOI: 10.1007/s10811-015-0597-2
文章类型: Article
英文摘要: When cultivating the kelp, Saccharina japonica, in China, one of the causes leading to degeneration in blade quality and productivity has been thought to be inbreeding caused by the use of limited numbers of sorus-bearing individuals that are continuously used over generations to produce large numbers of offspring. One of the effective solutions is to use intraspecific hybrid vigor to produce new cultivars or to recreate the original agronomic features of the older cultivars. This study produced a sporophytic B013 (cultivar code) by crossing a pair of distantly related unialgal male and female gametophyte clones. The male was isolated from an individual collected from a farmed population at Rongcheng, China, while the female came from a Korean wild individual sporophyte. In comparison with four controls, the B013 sporophytic offspring demonstrated excellent blade quality (entirely dark green in the dried product), high alginate (29.7-32.9 %) and iodine (0.29-0.31 mg g(-1)) contents in the dried product, the lowest fresh weight/sun-dried weight (FW/DW) ratio and the smallest coefficients of variation for total length (7.4 %), width (6.9 %), and biomass output (14.6 %). In addition, this cultivar remained in a vegetative state from June to August, greatly reducing the biomass loss during the hot summer season. In comparison with seeding zoospores for seedling production, seeding a selected pair of unialgal gametophytes had apparent advantages in effectively preventing inbreeding depression, which gave rise to a uniformed product and provided new cultivars for large-scale farming.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000369243300045
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.qdio.ac.cn/handle/337002/112465
Appears in Collections:实验海洋生物学重点实验室_期刊论文

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作者单位: 1.Shandong Peanut Res Inst, 126 Wannianquan Rd, Qingdao 266100, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Marine Algal Culture Collect Ctr, 7 Nanhai Rd, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Gangneung Wonju Natl Univ, Dept Marine Biosci, Kangnung 210702, Gangwondo, South Korea

Recommended Citation:
Zhao, Xiao Bo,Pang, Shao Jun,Liu, Feng,et al. Intraspecific crossing of Saccharina japonica using distantly related unialgal gametophytes benefits kelp farming by improving blade quality and productivity at Sanggou Bay, China[J]. JOURNAL OF APPLIED PHYCOLOGY,2016,28(1):449-455.
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文件名: Intraspecific crossing of Saccharina japonica using distantly related unialgal gametophytes benefits kelp farming by improving blade quality and productivity at Sanggou Bay, China.pdf
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