2017
DOI: 10.1111/nph.14557
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Finding a partner in the ocean: molecular and evolutionary bases of the response to sexual cues in a planktonic diatom

Abstract: Summary Microalgae play a major role as primary producers in aquatic ecosystems. Cell signalling regulates their interactions with the environment and other organisms, yet this process in phytoplankton is poorly defined. Using the marine planktonic diatom Pseudo‐nitzschia multistriata, we investigated the cell response to cues released during sexual reproduction, an event that demands strong regulatory mechanisms and impacts on population dynamics.We sequenced the genome of P. multistriata and performed phylog… Show more

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Cited by 106 publications
(154 citation statements)
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“…Rapheenabled motility relies on an actin-myosin system (Poulsen et al, 1999), and is directional, reversible and much faster than other forms of movement present in some nonraphid diatoms (Pickett-Heaps et al, 1986, 1991Kooistra et al, 2003). Active motility in vegetative cells enabled directed movement towards microhabitats with specific light, nutrient and temperature conditions (Cohn et al, 2015;Bondoc et al, 2016a), diurnal and tidal migrations (Palmer & Round, 1967), gravitactic behaviors (Frankenbach et al, 2014), predator avoidance (Kingston, 1999) and pheromonal migration (Sato et al, 2011;Gillard et al, 2013;Bondoc et al, 2016b;Moeys et al, 2016;Basu et al, 2017). This broad range of ecological benefitsunavailable to nonraphid diatomsexpanded the repertoire of habitats available for colonization, creating new opportunities for niche specialization.…”
Section: Discussionmentioning
confidence: 99%
“…Rapheenabled motility relies on an actin-myosin system (Poulsen et al, 1999), and is directional, reversible and much faster than other forms of movement present in some nonraphid diatoms (Pickett-Heaps et al, 1986, 1991Kooistra et al, 2003). Active motility in vegetative cells enabled directed movement towards microhabitats with specific light, nutrient and temperature conditions (Cohn et al, 2015;Bondoc et al, 2016a), diurnal and tidal migrations (Palmer & Round, 1967), gravitactic behaviors (Frankenbach et al, 2014), predator avoidance (Kingston, 1999) and pheromonal migration (Sato et al, 2011;Gillard et al, 2013;Bondoc et al, 2016b;Moeys et al, 2016;Basu et al, 2017). This broad range of ecological benefitsunavailable to nonraphid diatomsexpanded the repertoire of habitats available for colonization, creating new opportunities for niche specialization.…”
Section: Discussionmentioning
confidence: 99%
“…We identified dab genes with the same genetic organization and high sequence identity in the genome of the known DA-producing Pseudo-nitzschia multistriata (fig. S17) (30). Moreover, of the eight publicly available Pseudo-nitzschia transcriptomes, only the highly toxic DA-producing species Pseudo-nitzschia australis expressed the dab genes (figs.…”
mentioning
confidence: 99%
“…Basu et al . () address this knowledge gap by identifying genes specifically involved in the sexual life cycle phase, opening new avenues for study of this important process. While the global importance of phytoplankton is undisputed, the limitations of phytoplankton growth are still poorly understood.…”
Section: What Are Your Favourite New Phytologist Papers Of Recent Yeamentioning
confidence: 99%