Li Yaoguang, Umanzor Schery, Ng Crystal, Huang Mao, Marty-Rivera Michael, Bailey David, Aydlett Margaret, Jannink Jean-Luc, Lindell Scott, Yarish Charles
Department of Ecology & Evolutionary Biology, University of Connecticut, Stamford, CT 06901-2315 USA.
College of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Juneau, AK 99775 USA.
J Appl Phycol. 2022;34(5):2551-2563. doi: 10.1007/s10811-022-02811-1. Epub 2022 Aug 20.
(sugar kelp) is one of the most widely cultivated brown marine macroalgae species in the North Atlantic and the eastern North Pacific Oceans. To meet the expanding demands of the sugar kelp mariculture industry, selecting and breeding sugar kelp that is best suited to offshore farm environments is becoming necessary. To that end, a multi-year, multi-institutional breeding program was established by the U.S. Department of Energy's (DOE) Advanced Research Projects Agency-Energy (ARPA-E) Macroalgae Research Inspiring Novel Energy Resources (MARINER) program. Hybrid sporophytes were generated using 203 unique gametophyte cultures derived from wild-collected spp for two seasons of farm trials (2019-2020 and 2020-2021). The wild sporophytes were collected from 10 different locations within the Gulf of Maine (USA) region, including both sugar kelp () and the skinny kelp species (). We harvested 232 common farm plots during these two seasons with available data. We found that farmed kelp plots with skinny kelp as parents had an average increased yield over the mean (wet weight 2.48 ± 0.90 kg m and dry weight 0.32 ± 0.10 kg m) in both growing seasons. We also found that blade length positively correlated with biomass in skinny kelp x sugar kelp crosses or pure sugar kelp crosses. The skinny x sugar progenies had significantly longer and narrower blades than the pure sugar kelp progenies in both seasons. Overall, these findings suggest that sugar x skinny kelp crosses provide improved yield compared to pure sugar kelp crosses.
The online version contains supplementary material available at 10.1007/s10811-022-02811-1.
（糖海带）是北大西洋和北太平洋东部广泛养殖的褐藻大型海藻物种之一。为满足糖海带海水养殖产业不断增长的需求，选育最适合近海养殖环境的糖海带变得十分必要。为此，美国能源部（DOE）高级研究计划局能源处（ARPA - E）的大型海藻研究激发新能源资源（MARINER）项目设立了一个多年、多机构的育种计划。利用从野生采集的 spp 中获得的 203 种独特配子体培养物，经过两个养殖试验季节（2019 - 2020 年和 2020 - 2021 年）培育出杂交孢子体。野生孢子体从美国缅因湾地区的 10 个不同地点采集，包括糖海带（）和细叶海带物种（）。在这两个季节中，我们收获了 232 个有可用数据的普通养殖地块。我们发现，以细叶海带为亲本的养殖海带地块在两个生长季节的平均产量均高于平均值（湿重 2.48 ± 0.90 kg/m，干重 0.32 ± 0.10 kg/m）。我们还发现，在细叶海带×糖海带杂交或纯糖海带杂交中，叶片长度与生物量呈正相关。在两个季节中，细叶×糖海带后代的叶片都比纯糖海带后代的叶片长得更长、更窄。总体而言，这些发现表明，与纯糖海带杂交相比，糖海带×细叶海带杂交能提高产量。
在线版本包含可在 10.1007/s10811 - 022 - 02811 - 1 查看的补充材料。
