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Maternal inheritance of photoperiodic responsiveness controls sporophyte maturation in Saccharina japonica: Implications for hybrid kelp breeding and seedling production

文献类型：期刊论文

作者Li, Jing1,4; Li, Xiaodong1,4; Su, Li1,4; Chang, Lirong3; Zhang, Yan2; Sun, Ying2; Xiao, Luyang3; Huang, Ershuai3; Pang, Shaojun1,4
刊名ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
出版日期2026
卷号93页码:8
关键词Saccharina japonica Sorus formation Reproductive timing Photoperiodic responsiveness Maternal inheritance Hybrid kelp
ISSN号2211-9264
DOI10.1016/j.algal.2025.104493
通讯作者Li, Jing(jingli@qdio.ac.cn) ; Pang, Shaojun(sjpang@qdio.ac.cn)
英文摘要Reproductive timing in Saccharina japonica is tightly regulated by photoperiod, yet the genetic mechanism underlying variation in photoperiodic responsiveness remains unclear. This study examined whether photoperioddependent sporogenesis is maternally inherited in hybrid sporophytes. Two female gametophyte lines with contrasting maturation phenotypes-early-maturing (day-neutral) and late-maturing (short-day dependent)- were crossed with 22 genetically distinct male gametophytes. The resulting hybrid sporophytes were cultured under both natural and short-day conditions to evaluate reproductive differentiation. Hybrids derived from the early-maturing maternal line developed sori under natural photoperiods, whereas those from the late-maturing line required short-day induction to initiate sorus formation. Histological observations confirmed complete sorus morphogenesis and the release of viable meiospores following short-day exposure. These findings provide direct evidence that photoperiodic responsiveness in S. japonica is genetically determined and transmitted through the maternal lineage. This discovery reveals a novel mechanism of reproductive control in kelps and provides a conceptual framework for integrating photoperiod genetics into the development of cultivars with synchronized reproductive timing for commercial aquaculture.
WOS关键词PSEUDO-RESPONSE-REGULATOR ; MICROSATELLITE MARKERS ; SORUS FORMATION ; FLOWERING TIME ; LAMINARIALES ; PHAEOPHYCEAE ; PACIFIC ; LOCI ; GENE
资助项目National Key Research and Development Program of China[2024YFD2402700] ; Biological Resources Program from Chinese Academy of Sciences[KFJ-BRP-017-53] ; Biological Resources Program from Chinese Academy of Sciences[KFJ-BRP-004] ; Taishan Industrial Program[tsls20241109] ; Open Program of Key Laboratory of Cultivation and High-value Utilization Marine Organisms in Fujian Province[2023fjscq01] ; Agriculture Research System of China[CARS-50]
WOS研究方向Biotechnology & Applied Microbiology
语种英语
WOS记录号WOS:001655152700001
出版者ELSEVIER
源URL[http://ir.qdio.ac.cn/handle/337002/204535]  
专题中国科学院海洋研究所
通讯作者Li, Jing; Pang, Shaojun
作者单位1.Inst Oceanol, Chinese Acad Sci, State Key Lab Breeding Biotechnol & Sustainable Aq, Qingdao, Peoples R China
2.Dalian Haibao Fishery Co Ltd, Dalian, Peoples R China
3.Weihai Changqing Ocean Sci & Technol Co Ltd, Weihai, Peoples R China
4.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Li, Jing,Li, Xiaodong,Su, Li,et al. Maternal inheritance of photoperiodic responsiveness controls sporophyte maturation in Saccharina japonica: Implications for hybrid kelp breeding and seedling production[J]. ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,2026,93:8.
APA Li, Jing.,Li, Xiaodong.,Su, Li.,Chang, Lirong.,Zhang, Yan.,...&Pang, Shaojun.(2026).Maternal inheritance of photoperiodic responsiveness controls sporophyte maturation in Saccharina japonica: Implications for hybrid kelp breeding and seedling production.ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS,93,8.
MLA Li, Jing,et al."Maternal inheritance of photoperiodic responsiveness controls sporophyte maturation in Saccharina japonica: Implications for hybrid kelp breeding and seedling production".ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS 93(2026):8.

入库方式： OAI收割

来源：海洋研究所

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