Challenges of genetic homogeneity in aquaculture of the kelp Saccharina japonica: Insights from China in ten year's retrospect
文献类型：期刊论文
| 作者 | Li, Xiaodong1,6; Chang, Lirong5; Han, Feng2,4; Li, Xia3; Xiao, Luyang5; Huang, Ershuai5; Yang, Yaning1,2,6; Su, Li1,6; Pang, Shaojun1,6 |
| 刊名 | AQUACULTURE REPORTS
 |
| 出版日期 | 2025-09-15 |
| 卷号 | 43页码:10 |
| 关键词 | Saccharina japonica Kelp farming Seaweed aquaculture Gene introgression Productivity |
| ISSN号 | 2352-5134 |
| DOI | 10.1016/j.aqrep.2025.102904 |
| 通讯作者 | Pang, Shaojun(sjpang@qdio.ac.cn) |
| 英文摘要 | Genetic homogeneity among principal cultivars of the kelp Saccharina japonica was first documented a decade ago in Rongcheng, a historically significant Saccharina farming city in China. Seven large-scale hatcheries in this region supply seedlings for approximately 50,795 ha of cultivation area, yielding similar to 2.7 million metric tons of fresh biomass annually. These hatcheries have implemented independent breeding programs to enhance the productivity of cultivated populations. To assess decadal changes in farmed populations, we conducted a comprehensive investigation during the 2023-2024 cultivation cycle, combining microsatellite marker analysis of genetic composition/structure with open-sea cultivation trials to evaluate both genotypic and phenotypic characteristics. Our analyses confirmed persistent genetic homogeneity in five of six examined cultivars, consistent with prior findings. Standardized parental sporophyte selection criteria, coupled with uniform hatchery protocols and infrastructure, were identified as primary drivers of homogeneity. Notably, genetic introgression was detected in 2024 populations following the introduction of a hybrid cultivar developed through targeted hybridization at one hatchery. The incorporation of phylogenetically distinct germplasm induced measurable genotypic and phenotypic modifications in farmed populations, concomitant with productivity improvements. These findings underscore the necessity for hatcheries to maintain self-sustaining brood-stock management and seedling production systems to preserve cultivar genetic integrity in a multi-hatchery operation environment. Regular monitoring of population genetic architecture is strongly recommended to ensure sustainable aquaculture practices. |
| WOS关键词 | HATCHERY POPULATIONS ; YEZOENSIS BANGIALES ; PORPHYRA-YEZOENSIS ; DIVERSITY ; SOFTWARE ; WILD ; LAMINARIALES ; MARKERS ; VERSION ; HYBRID |
| 资助项目 | National Key R&D Program of China[2024YFD2402700] ; Taishan Industrial Program[tsls20241109] ; Key Technology Research and Development Program of Shandong Province[2021LZGC029] ; Key Technology Research and Development Program of Shandong Province[2023LZGCQY002] ; Key Technology Research and Development Program of Shandong Province[2021LZGC004] ; Key Supporting Project from the Centre for Ocean Mega-Science, Chinese Academy of Sciences[COMS2020J01] ; China Agriculture Research System[CARS-50] ; Biological Resources Program, Chinese Academy of Sciences[KFJ-BRP-004] |
| WOS研究方向 | Fisheries |
| 语种 | 英语 |
| WOS记录号 | WOS:001501005200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/202226]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 通讯作者 | Pang, Shaojun |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Breeding Biotechnol & Sustainable Aquacult, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Xinghuacun Fenjiu Distillery Co Ltd, Fenyang, Peoples R China 4.Natl Fisheries Technol Extens Ctr, Beijing, Peoples R China 5.Weihai Changqing Ocean Sci & Technol Co Ltd, Weihai, Peoples R China 6.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiaodong,Chang, Lirong,Han, Feng,et al. Challenges of genetic homogeneity in aquaculture of the kelp Saccharina japonica: Insights from China in ten year's retrospect[J]. AQUACULTURE REPORTS,2025,43:10. |
| APA | Li, Xiaodong.,Chang, Lirong.,Han, Feng.,Li, Xia.,Xiao, Luyang.,...&Pang, Shaojun.(2025).Challenges of genetic homogeneity in aquaculture of the kelp Saccharina japonica: Insights from China in ten year's retrospect.AQUACULTURE REPORTS,43,10. |
| MLA | Li, Xiaodong,et al."Challenges of genetic homogeneity in aquaculture of the kelp Saccharina japonica: Insights from China in ten year's retrospect".AQUACULTURE REPORTS 43(2025):10. |
入库方式： OAI收割
来源：海洋研究所
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