Breeding of an intraspecific kelp hybrid Dongfang no. 6 (Saccharina japonica, Phaeophyceae, Laminariales) for suitable processing products and evaluation of its culture performance

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• 作者：Xiaojie Li ; Zhuangzhi Zhang ; Shancun Qu ; Guangjin Liang…
• 关键词：Kelp hybrid ; Gametophyte clone hybridization ; Culture performance ; Suitability for processing
• 刊名：Journal of Applied Phycology
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：28
• 期：1
• 页码：439-447
• 全文大小：742 KB
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  Li ZL, Zhang QS, Yang YY, Xie JZ, Luo SJ (2003) Study on the technique of large-scale culture of kelp gametophyte clones. Shandong Fish 20(5):1–3 (in Chinese)
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  Section of Seaweed Cultivation, Institute of Marine Fisheries, Qingdao; Section of Seaweed Genetics and Breeding, Institute of Oceanology, Academia Sinica (1976) The breeding of new varieties of Haidai (Laminaria japonica Aresch.) with high production and high iodine content. Acta Genetica Sinica 1976(3):224-230 (in Chinese with English abstract)
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• 作者单位：Xiaojie Li (1)
  Zhuangzhi Zhang (1)
  Shancun Qu (1)
  Guangjin Liang (1)
  Nan Zhao (1)
  Juan Sun (1)
  Shaofeng Song (1)
  Zengmei Cao (1)
  Xia Li (1)
  Jinhua Pan (1)
  Shiju Luo (1)
  Linan Zhang (1)
  Cuiju Cui (1)
  Jie Peng (1)
  Yan Li (1)
  Ruina Wu (1)
  Juping Zhao (1)
  Rui Qian (1)
  Liqin Wang (1)
  Shan Sai (1)
  Guanpin Yang (2)
  
  1. National Engineering and Technique Research and Development Center of Algae and Sea Cucumber of China, Provincial Key Laboratory of Genetic Improvement and Efficient Culture of Marine Algae of Shandong, Shandong Oriental Ocean Sci-tech Co., Ltd., Yantai, Shandong, 264003, China
  2. College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
  
• 刊物主题：Plant Sciences; Freshwater & Marine Ecology; Plant Physiology; Ecology;
• 出版者：Springer Netherlands
• ISSN：1573-5176

文摘

Dongfang no. 6, an intraspecific hybrid of kelp (Saccharina japonica) which was high in yield and had a high stress tolerance and was suitable for processing, was bred by crossing scientifically selected parental gametophyte clones. The sporophyte of the hybrid was raised by crossing a female gametophyte clone isolated from a Korean ecotype of S. japonica (Korean kelp) with a male gametophyte clone isolated from Lianza no. 1, a variety of S. japonica bred through continuous selection. The culture performance, stress tolerance, and suitability for processing of the hybrid and two commercial controls were compared for a period lasting 5 years (2009–2013). It was found that the hybrid was fast in growth, tolerant to high seawater temperature, resistant to strong solar irradiation, late in maturing time, and high in processed product yield. The percentage of salting processed product of the hybrid was 17.5 and 15.4 % higher than those of control 1 and 2, respectively. The yield of salting processed product of the hybrid increased by 24.2 and 38.8 % over control 1 and 2, respectively. The yield of air drying processed product of the hybrid increased by 109.4 and 88.1 % over control 1 and 2, respectively. The breeding of Dongfang no. 6 demonstrated that crossing gametophyte clones in combination with selecting desirable hybrids are highly effective for breeding kelp hybrids with high-culture performance and suitability for processing. Keywords Kelp hybrid Gametophyte clone hybridization Culture performance Suitability for processing