Hybrid vigour for thermal tolerance in hybrids between the allopatric kelps<i>Laminaria digitata</i>and<i>L. pallida</i>(Laminariales, Phaeophyceae) with contrasting thermal affinities

Martins, Neusa; Pearson, Gareth A.; Gouveia, Licínia; Tavares, Ana I.; Serrão, Ester A.; Bartsch, Inka

doi:10.1080/09670262.2019.1613571

Cited by 39 publications

(52 citation statements)

References 47 publications

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“…There are, however, examples where barriers to crossing are observed between closely related species pairs (Tom Dieck, 1992; reviewed by Bartsch et al, 2008). Interestingly, hybrid inviability between sympatric sister species may contrast with viability at greater evolutionary distances and/or geographic isolation (Tom Dieck, 1992;Martins et al, 2019). For example, sister species Laminaria hyperborea and L. digitata are incompatible (Tom Dieck, 1992), while Laminaria digitata and L. pallida, which are more distantly related but differ in geographic range (Rothman et al, 2017;Martins et al, 2019) are partially compatible, suggesting that reproductive barriers may only be reinforced when species are sympatric.…”

Section: Barriers To Reproductionmentioning

confidence: 99%

Phylogeny and Evolution of the Brown Algae

Bringloe

Starko

Wade

et al. 2020

Critical Reviews in Plant Sciences

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132

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The brown algae (Phaeophyceae) are a group of multicellular heterokonts that are ubiquitous in today's oceans. Large brown algae from multiple orders are the foundation to temperate coastal ecosystems globally, a role that extends into arctic and tropical regions, providing services indirectly through increased coastal productivity and habitat provisioning, and directly as a source of food and commercially important extracts. Recent multi-locus and genome-scale analyses have revolutionized our understanding of the brown algal phylogeny, providing a robust framework to test evolutionary hypotheses and interpret genomic variation across diverse brown algal lineages. Here, we review recent developments in our understanding of brown algal evolution based on modern advances in phylogenetics and functional genomics. We begin by summarizing modern phylogenetic hypotheses, illuminating the timescales over which the various brown algal orders diversified. We then discuss key insights on our understanding of brown algal life cycle variation and sexual reproduction systems derived from modern genomic techniques. We also review brown algal speciation mechanisms and the associated biogeographic patterns that have emerged globally. We conclude our review by discussing promising avenues for future research opened by genomic datasets, directions that are expected to reveal critical insights into brown algal evolution in past, present, and future oceans.

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Section: Barriers To Reproductionmentioning

confidence: 99%

Phylogeny and Evolution of the Brown Algae

Bringloe

Starko

Wade

et al. 2020

Critical Reviews in Plant Sciences

Self Cite

132

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“…In an assisted evolution context, inter-specific hybridization would be facilitated where it would otherwise not occur spatially, temporally (e.g., reproductive isolation) or within evolutionary time frames that would match the rapid pace of climate change. For example, hybrids of both kelp and coral have been shown to have greater thermal tolerance (Chan et al, 2018;Martins et al, 2019) which could be utilized in a restoration or assisted adaptation context that accepts redefining genetic baselines by mixing species gene pools.…”

Section: Redefine -Create a Novel Genetic Statementioning

confidence: 99%

Restore or Redefine: Future Trajectories for Restoration

et al. 2020

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“…The distinction between related kelp species is not always clear, and in some cases, what is defined as two or more species may actually be locally adapted and genetically different populations of the same species, or simply the result of phenotypic plasticity (Kilar et al, 1992;Demes et al, 2009;Fraser et al, 2009). Species hybrids in the Laminariales have been observed in nature, and under controlled conditions, it is possible to create viable offspring from a number of species hybridizations (Chapman, 1974;Lüning et al, 1978;Sangonsuga and Neushul, 1978;Bolton et al, 1983;Lewis et al, 1986;tom Dieck, 1992;tom Dieck and de Oliveira, 1993;Liptack and Druehl, 2000;Druehl et al, 2005;Westermeier et al, 2007;Martins et al, 2019;Müller et al, 2019). As described further in Section "Hybrid Breeding and Selection Among Crosses (HB/SC), " several kelp cultivars bred in China and Korea are species hybrids.…”

Section: Species Hybridization Among Kelpsmentioning

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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Hybrid vigour for thermal tolerance in hybrids between the allopatric kelpsLaminaria digitataandL. pallida(Laminariales, Phaeophyceae) with contrasting thermal affinities

Cited by 39 publications

References 47 publications

Phylogeny and Evolution of the Brown Algae

Phylogeny and Evolution of the Brown Algae

Restore or Redefine: Future Trajectories for Restoration

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

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