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

Li, Xiaojie; Zhang, Zhuangzhi; Qu, Shancun; Liang, Guangjin; Zhao, Nan; Sun, Juan; Song, Shaofeng; Cao, Zengmei; Li, Xia; Pan, Junfeng; Luo, Shiju; Zhang, Linan; Cui, Cuiju; Peng, Jie; Li, Yan; Wu, Ruina; Zhao, Juping; Qu, Rui; Wang, Liqin; Sai, Shan; Yang, Guanpin

doi:10.1007/s10811-015-0562-0

Cited by 31 publications

(23 citation statements)

References 5 publications

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“…) and ‘Dongfang 2, Dongfang 3, Dongfang 6’ (Li et al . , , ) with a production primarily oriented to human consumption, which includes specific texture of blades, taste and form (Shan et al . ; Zhao et al .…”

Section: Introductionmentioning

confidence: 99%

Overview of 3 year precommercial seafarming of Macrocystis pyrifera along the Chilean coast

Camus

Infante

Buschmann

2016

Reviews in Aquaculture

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Chile is one of the main producers of seaweeds in the world; however, most of the production comes from harvesting natural beds and only 2.4% from cultures, dominated by the agarophyte Gracilaria chilensis. One of the most exploited resources is the giant kelp Macrocystis pyrifera, which is sold fresh for abalone feed and dry for alginate extraction. Recently, new possible markets are developing for this species, for example human consumption and biofuel/chemical production that could increase the demand and justify the development of a commercial cultivation system. The objective of this work was to present the recent development of the seafarming of M. pyrifera in Chile, focusing on the fundamental determinants of productivity in cultivated systems and the identification of the binding constraints to productivity. Three experimental plots (up to 21 Ha) were designed and deployed in three study areas (Caldera in northern Chile and Quenac and Ancud in southern Chile) to test different environmental conditions. During a period of 3 years, sporophytes produced in an indoor hatchery were deployed monthly, at different densities, and followed until harvest. Environmental parameters and biomass were monitored on a monthly basis. Our findings demonstrate the feasibility of Macrocystis seafarming on a large scale in Chile. Important differences in yield were observed between the study areas associated with either environmental physical or biological factors, such as the presence of herbivores. Our best production cycle reached 124 WMT Ha−1 month −1 in southern Chile, and the worst, less than 20 WMT Ha−1 month−1 in northern Chile. Finally, some direct and indirect constrains were encountered, including seeding season and depth, and the presence of pests and diseases, that are discussed.

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Section: Introductionmentioning

confidence: 99%

Overview of 3 year precommercial seafarming of Macrocystis pyrifera along the Chilean coast

Camus

Infante

Buschmann

2016

Reviews in Aquaculture

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“…Hybridizations were made between material of the same species, sometimes originating from different geographical regions (Li et al, 2016a,b;Zhao et al, 2016), sometimes not (Niwa and Kobiyama, 2019), or between different species of the same genus (Li et al, 2007(Li et al, , 2008aZhang et al, 2007Zhang et al, , 2011Zhang et al, , 2016Hwang et al, 2012Hwang et al, , 2014. Gametophyte culture combinations with high heterosis were selected as parents, and in many cases, the first generation was used directly as a commercial hybrid cultivar (Li et al, 2007(Li et al, , 2016bHwang et al, 2012Hwang et al, , 2014Zhao et al, 2016). Most publications are not clear on the number of crosses tested and on whether the gametophyte cultures were resulting from one individual gametophyte, many gametophytes from the same individual sporophyte, or from several sporophytes.…”

Section: Hybrid Breeding and Selection Among Crosses (Hb/sc)mentioning

confidence: 99%

Cultivar Development of Kelps for Commercial Cultivation—Past Lessons and Future Prospects

2020

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Cultivated kelps and other macroalgae have great potential in future provision of food, feed, bioenergy, fertilizer, and raw material for a range of chemical products including pharmaceuticals, food and feed additives, and cosmetics. Only a few species are currently cultivated, almost exclusively in Asia. There is a range of species that could be utilized in different parts of the world, providing that protocols for reproduction, propagation, and cultivation are developed. Domestication of species involves selection of traits that are desirable in cultivation and in the utilization of the harvested biomass. Genetic improvement of cultivated species through recombination of alleles and selection (breeding) has ensured high productivity and product quality in both agri-and aquaculture and will likely do so for macroalgae cultivation and use as well. According to the published literature, genetic improvement of kelps in Asia has so far largely relied on utilization of heterosis expressed in certain combinations of parental material, sometimes species hybrids. Here, we explore and evaluate the various methods that could be used in kelp breeding and propose an initial simple and low-cost breeding strategy based on recurrent mixed hybridization and phenotypic selection within local populations. We also discuss the genetic diversity in wild populations, and how this diversity can be protected against genetic pollution, either by breeding and cultivating local populations, or by developing cultivars that are not able to establish in, or hybridize with, wild populations.

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“…Following the invention of the 'summer seedling technique' and the successful development of the floating raft method to grow sporophytes (Tseng et al 1955;Tseng & Wu 1962;Tseng 2001;Shan et al 2011;Su et al 2017), cultivation has spread rapidly from north to south. During this 60 years period, many cultivars were bred either by researchers or farming enterprises (Zhang et al 2007;Li et al 2008;Zhang et al 2016;Li et al 2016aLi et al , b, 2007Pang et al 2015;Zhang et al 2011, early work from 1960s to 1980s not cited). However, only 10 cultivars have been certified by the Ministry of Agriculture from 1997 to 2018 (Table 8).…”

Section: Seaweed Farming In Generalmentioning

confidence: 99%

“…Type II is produced by first crossing S. japonica and S. longissima and then by crossing the resultant offspring with S. japonica (Li et al 2008). Type III is produced by crossing geographically isolated individuals of the same species (Li et al 2016a). In all three hybrid types, the sporophytic seedlings need to be produced by crossing vegetatively propagated gametophyte clones (Zhang et al 2008;Zhou et al 2000).…”

Section: Seaweed Farming In Generalmentioning

confidence: 99%

Seaweed breeding programs and progress in eastern Asian countries

et al. 2019

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The use of seaweeds as human food in eastern Asian countries has a long history, stretching back over a thousand years. However, it was not until the late 1940s that cultivation of seaweeds in near-shore coastal areas began. Due to their location, the Korean peninsula, the Japanese islands and the Chinese coasts share a similar seaweed flora in their coastal waters, and it is not surprising that seaweed species chosen for cultivation, methods of farming and post-harvest processing in these countries have a lot in common. In 2016, the total seaweed production in these three countries reached 16,218,406 t, approximately 53.8% of global seaweed production (FAO). In the course of seaweed farming development in eastern Asia, the development and use of seaweed cultivars have contributed significantly to the seaweed farming industry in terms of improving both the biomass yield and the quality of the food products produced. In this article, the recent development of cultivar-related research and applications practised in Korea, Japan and China are reviewed with particular reference to the key commercial species: Saccharina japonica, Pyropia spp., Undaria spp., Cladosiphon okamurarus, and Nemacystus decipiens. In the past 21 years, 47 certified seaweed cultivars have been used in commercial cultivation in these countries. While much of the development effort has focused on increasing yields, a current emphasis in cultivar breeding programs is to increase the quality of farmed seaweed products. More recently, molecular analyses have been integrated into these programs and have become indispensable tools in the breeding process.

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

Cited by 31 publications

References 5 publications

Overview of 3 year precommercial seafarming of Macrocystis pyrifera along the Chilean coast

Overview of 3 year precommercial seafarming of Macrocystis pyrifera along the Chilean coast

Cultivar Development of Kelps for Commercial Cultivation—Past Lessons and Future Prospects

Seaweed breeding programs and progress in eastern Asian countries

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