Breeding of an elite cultivar Haibao No. 1 of Undaria pinnatifida (Phaeophyceae) through gametophyte clone crossing and consecutive selection
文献类型：期刊论文
| 作者 | Shan, Ti Feng; Pang, Shao Jun; Li, Jing ; Gao, Su Qin
|
| 刊名 | JOURNAL OF APPLIED PHYCOLOGY
 |
| 出版日期 | 2016-08-01 |
| 卷号 | 28期号:4页码:2419-2426 |
| 关键词 | Undaria pinnatifida Phaeophyceae Cultivar Cultivation Breeding Selection |
| 英文摘要 | As a commercially important kelp, Undaria pinnatifida has been farmed in northern China for more than 30 years. Farming of U. pinnatifida has been restrained historically by the lack of cultivars ever since the very beginning of its cultivation. The cultivation industry to a large extent relies on introducing seedlings or parental plants from other East Asian countries from time to time due to the degeneration of the sporophytes. In order to change this awkward situation, an elite cultivar named Haibao No. 1 was developed through gametophyte clone crossing and consecutive selection. Its original parents were selected from cultivation populations in Dalian. The most pronounced agronomic characteristic of this novel cultivar was its high yield. From F-2 to F-5, the average fresh weight per individual was all significantly higher than the control. In large-scale cultivation of F-4 and F-5 populations, the fresh weight reached 19-20 kg m(-1) on cultivation line, increasing the yield by more than 40 %. F-4 population of the cultivar showed significant heterozygosity deficiency (F-is=0.4728) as revealed by the microsatellite analysis at 20 loci, suggesting the effect of consecutive inbreeding. Coefficients of variations (CVs) of the blade width, the width of the undivided part of the blade, the stipe width, and the fresh weight ranged from 12.82 to 22.3 %, which seemed to be high; however, when compared with the crossing line derived from the crossing of a pair of male and female gametophyte clones, the CVs were close between them, which implied that these variations were attributed to environmental rather than genetic difference. The most suitable beginning time for harvesting of this cultivar was in middle April, when the average fresh weight per individual reached the highest value. Besides high yield, Haibao No. 1 was also characterized by possessing the wide stipe, long special-grade midrib, and large sporophylls. All these characteristics contributed to the much higher commercial value of this cultivar than the controls. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000383571300029 |
| 版本 | 出版稿 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/135945]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, 7 Nanhai Rd, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shan, Ti Feng,Pang, Shao Jun,Li, Jing,et al. Breeding of an elite cultivar Haibao No. 1 of Undaria pinnatifida (Phaeophyceae) through gametophyte clone crossing and consecutive selection[J]. JOURNAL OF APPLIED PHYCOLOGY,2016,28(4):2419-2426. |
| APA | Shan, Ti Feng,Pang, Shao Jun,Li, Jing,&Gao, Su Qin.(2016).Breeding of an elite cultivar Haibao No. 1 of Undaria pinnatifida (Phaeophyceae) through gametophyte clone crossing and consecutive selection.JOURNAL OF APPLIED PHYCOLOGY,28(4),2419-2426. |
| MLA | Shan, Ti Feng,et al."Breeding of an elite cultivar Haibao No. 1 of Undaria pinnatifida (Phaeophyceae) through gametophyte clone crossing and consecutive selection".JOURNAL OF APPLIED PHYCOLOGY 28.4(2016):2419-2426. |
入库方式： OAI收割
来源：海洋研究所
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