Kelp transcriptomes provide robust support for interfamilial relationships and revision of the little known Arthrothamnaceae (Laminariales)

Jackson, Chris; Salomaki, Eric D.; Lane, Christopher E.; Saunders, Gary W.

doi:10.1111/jpy.12465

Cited by 29 publications

(34 citation statements)

References 31 publications

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“…We focused our experiments on 12 eastern Pacific kelp species that were abundant in both our poleward "northern" (British Columbia/Washington State) and "central" (central California) regions of interest; 4 of these 12 species were also abundant in our most equatorward "southern" (southern California) region. This species pool included representatives from four of the six main kelp families (Jackson et al 2017). All species from all regions were able to complete their life cycle and successfully recruit at 12°C, therefore, we considered 12°C to be a suitable temperature for all 12 species.…”

Section: Methodsmentioning

confidence: 99%

Recruitment tolerance to increased temperature present across multiple kelp clades

Muth

Graham

Lane

et al. 2019

Ecology

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Kelp systems dominate nearshore marine environments in upwelling zones characterized by cold temperatures and high nutrients. Worldwide, kelp population persistence and recruitment success generally decreases with rising water temperatures coupled with low nutrients, making kelp populations vulnerable to impending warming of the oceans. This response to climate change at a global scale, however, may vary due to regional differences in temperature variability, acclimation, and differential responses of kelp species to changing conditions. Culture experiments were conducted on 12 eastern Pacific kelp taxa across geographic regions (British Columbia, central California, and southern California) under three nitrate levels (1, 5, and 10 μmol/L) and two temperatures (12°C and 18°C) to determine sporophyte production (i.e., recruitment success). For all taxa from all locations, sporophytes were always present in the 12°C treatment and when recruitment failure was observed, it always occurred at 18°C, regardless of nitrate level, indicating that temperature is the driving factor limiting recruitment, not nitrate. Rising ocean temperatures will undoubtedly cause recruitment failure for many kelp species; however, the ability of species to acclimatize or adapt to increased temperatures at the warmer edge of their species range may promote a resiliency of kelp systems to climate change at a global scale.

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Section: Methodsmentioning

confidence: 99%

Recruitment tolerance to increased temperature present across multiple kelp clades

Muth

Graham

Lane

et al. 2019

Ecology

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“…Most of the lineages that spread from north to south in shallow water did so on the American side, with the consequence that the temperate biota of western South America was particularly strongly altered by the arrival of northern species. At least 27 seaweeds (7% of the living flora of 380 species in Chile) have northern origins (Santelices, ; Santelices & Meneses, ), including the kelps Lessonia and the giant Macrocystis (Astorga, Fernández, Valenzuela, Avaria‐Llautureo, & Westermeier, ; Coyer, Smith, & Andersen, ; Jackson, Salomaki, Lane, & Saunders, ).…”

Section: Dispersal From North To Southmentioning

confidence: 99%

“…These lineages include the mussel Mytilus (Kafanov, ), tellinid bivalves of the subfamily Macominae (Coan, ), clinocardiine cockles of the genus Keenocaroium (Kafanov, ), at least four genera of buccinine whelks (Y. B. Gladenkov et al., ; Titova, ; Amano & Oleinik, ), and laminarialean kelps (Jackson et al., ; Kawai, Hanyuda, Draisma, Wilce, & Andersen, ; Kawai et al.,). An additional 13 clades reached the NEP from the west during the second half of the Miocene.…”

Section: Spreading Across the North Pacificmentioning

confidence: 99%

“…Among ecologically important trans‐Arctic algae are kelps of the genera Agarum , Alaria , Laminaria and Saccharina (Jackson et al., ); the fucacean brown algae Fucus and Ascophyllum (Cánovas et al., ; Coyer, Hoarau, Van Schaik, Luijckx, & Olsen, ); and many red algae including Bangia , Devaleraea , Dilsea , Dumontia , Phycodrys , Porphyra and the encrusting coralline Clathromorphum (Lebednik, ; Lindstrom, ; van Oppen et al., ).…”

Section: The Trans‐arctic Interchangementioning

confidence: 99%

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The coastal North Pacific: Origins and history of a dominant marine biota

Vermeij

Banker

Capece

et al. 2018

Journal of Biogeography

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Aims Some biogeographical regions act primarily as donors of colonists to other regions, while others act predominantly as recipient areas. How some biotas become dominant while others do not is a largely historical question that has received surprisingly little attention from biogeographers. Here, we seek to answer this question for the cold‐water North Pacific biota, which did not exist forty million years ago but which is now the principal donor biota outside the tropics. Location We focus on the cool‐temperate coastal North Pacific Ocean over the last 36.5 million years. Taxon We consider all multicellular taxa for which adequate fossil, phylogenetic and biogeographical data exist. Methods After placing North Pacific geographical events in the broader context of ocean gateways opening and closing elsewhere in the world, we discuss the history and factors affecting the planktonic and benthic productivity in the North Pacific based on a review and critical evaluation of the literature. A synthesis of primary sources was used to evaluate the origins and fates of North Pacific lineages, with special emphasis on movements to, within and from the North Pacific during the Cenozoic era. Results During the Late Eocene to earliest Miocene, the cooling North Pacific received colonists from adjacent warm‐water regions and the cold Southern Hemisphere, where temperate conditions had existed since at least the Cretaceous. From the Miocene onward, the North Pacific biota began to spread to the Southern Hemisphere and through Bering Strait to the Arctic and North Atlantic Oceans. Within the North Pacific, lineages during the early cooling phases spread predominantly from west to east, but in the Early Middle Miocene this pattern reversed, with later expansions going in both directions. An increase in productivity, powered by the evolution of highly productive seaweeds and by consumers with high metabolic rates, accompanied the transformation of the North Pacific from a recipient to donor biota. Main conclusions The North Pacific replaced the Southern Hemisphere temperate biota as the principal donor biota during the Miocene through a combination of increasing productivity, low magnitudes of extinction and intense competition and predation in an ocean basin with a long coastline.

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“…An exception is bull kelp that is classified as a fucoid. Taxonomic understanding of both groups remains incomplete and in need of further refinement (reviews Hartog and den Kuo, 2006;Bartsch et al, 2008;Bolton, 2010), despite recent advances (Lane et al, 2006;Aires et al, 2011;Coyer et al, 2013;Rothman et al, 2015Rothman et al, , 2017Jackson et al, 2017). The continued application of genome-wide markers and multigene phylogenies will likely reveal previously overlooked taxonomic and biogeographic lineages (e.g., Tellier et al, 2009Tellier et al, , 2011.…”

Section: Climate Change Impact On Marine Macrophytesmentioning

confidence: 99%

Climate Change Impacts on Seagrass Meadows and Macroalgal Forests: An Integrative Perspective on Acclimation and Adaptation Potential

et al. 2018

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Marine macrophytes are the foundation of algal forests and seagrass meadows-some of the most productive and diverse coastal marine ecosystems on the planet. These ecosystems provide nursery grounds and food for fish and invertebrates, coastline protection from erosion, carbon sequestration, and nutrient fixation. For marine macrophytes, temperature is generally the most important range limiting factor, and ocean warming is considered the most severe threat among global climate change factors. Ocean warming induced losses of dominant macrophytes along their equatorial range edges, as well as range extensions into polar regions, are predicted and already documented. While adaptive evolution based on genetic change is considered too slow to keep pace with the increasing rate of anthropogenic environmental changes, rapid adaptation may come about through a set of non-genetic mechanisms involving the functional composition of the associated microbiome, as well as epigenetic modification of the genome and its regulatory effect on gene expression and the activity of transposable elements. While research in terrestrial plants demonstrates that the integration of non-genetic mechanisms provide a more holistic picture of a species' evolutionary potential, research in marine systems is lagging behind. Here, we aim to review the potential of marine macrophytes to acclimatize and adapt to major climate change effects via intraspecific variation at the genetic, epigenetic, and microbiome levels. All three levels create phenotypic variation that may either enhance fitness within individuals (plasticity) or be subject to selection and ultimately, adaptation. We

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Kelp transcriptomes provide robust support for interfamilial relationships and revision of the little known Arthrothamnaceae (Laminariales)

Cited by 29 publications

References 31 publications

Recruitment tolerance to increased temperature present across multiple kelp clades

Recruitment tolerance to increased temperature present across multiple kelp clades

The coastal North Pacific: Origins and history of a dominant marine biota

Climate Change Impacts on Seagrass Meadows and Macroalgal Forests: An Integrative Perspective on Acclimation and Adaptation Potential

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