Comparative Analysis of the Complete Plastid Genome Sequence of the Red Alga Gracilaria tenuistipitata var. liui Provides Insights into the Evolution of Rhodoplasts and Their Relationship to Other Plastids

Hagopian, Jonathan C.; Reis, Marcelo S.; Kitajima, João Paulo; Bhattacharya, Debashish; Oliveira, Mariana Cabral de

doi:10.1007/s00239-004-2638-3

Cited by 112 publications

(93 citation statements)

References 79 publications

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“…S7A). These genes are mostly photosystems, which have been shown to be less likely to lead to spurious results than the housekeeping genes (31,32). Overall we conclude the plastid genomes support the monophyly of two major groups, the alveolate/heterokont group and the hacrobian group-whether they form a single chromalveolate group is not yet certain.…”

Section: Plastid Phylogeny Supports a Common Origin Of Alveolate Andmentioning

confidence: 72%

A common red algal origin of the apicomplexan, dinoflagellate, and heterokont plastids

Janouškovec

Horák

Oborník

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

431

444

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The discovery of a nonphotosynthetic plastid in malaria and other apicomplexan parasites has sparked a contentious debate about its evolutionary origin. Molecular data have led to conflicting conclusions supporting either its green algal origin or red algal origin, perhaps in common with the plastid of related dinoflagellates. This distinction is critical to our understanding of apicomplexan evolution and the evolutionary history of endosymbiosis and photosynthesis; however, the two plastids are nearly impossible to compare due to their nonoverlapping information content. Here we describe the complete plastid genome sequences and plastid-associated data from two independent photosynthetic lineages represented by Chromera velia and an undescribed alga CCMP3155 that we show are closely related to apicomplexans. These plastids contain a suite of features retained in either apicomplexan (four plastid membranes, the ribosomal superoperon, conserved gene order) or dinoflagellate plastids (form II Rubisco acquired by horizontal transfer, transcript polyuridylylation, thylakoids stacked in triplets) and encode a full collective complement of their reduced gene sets. Together with whole plastid genome phylogenies, these characteristics provide multiple lines of evidence that the extant plastids of apicomplexans and dinoflagellates were inherited by linear descent from a common red algal endosymbiont. Our phylogenetic analyses also support their close relationship to plastids of heterokont algae, indicating they all derive from the same endosymbiosis. Altogether, these findings support a relatively simple path of linear descent for the evolution of photosynthesis in a large proportion of algae and emphasize plastid loss in several lineages (e.g., ciliates, Cryptosporidium, and Phytophthora).Apicomplexa | Chromera velia | CCMP3155 | plastid evolution | chloroplast genome

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Section: Plastid Phylogeny Supports a Common Origin Of Alveolate Andmentioning

confidence: 72%

A common red algal origin of the apicomplexan, dinoflagellate, and heterokont plastids

Janouškovec

Horák

Oborník

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

431

444

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“…Other algal genomes in the sequencing pipeline are Ostreococcus sp RCC809, Botryococcus braunii Berkeley strain, Dunaliella salina CCAP19/18, Galdieria sulphuraria, Chondrus crispus, Fragilariopsis cylindrus CCMP1102, Pseudo-nitzchia multiseries CLN-47, Emiliana huxleyi CCMP1516 (Radakovits et al, 2010;Tirichine and Bowler, 2011). Several organelle (mitochondria or/and plastid) genomes in microalgae have also been sequenced, including those for D. salina CCAP19/ 18 (Smith et al, 2010), Botryococcus braunii (Weiss et al, 2010;2011), Nephroselmis olivaceae (Turmel et al, 1999), Chaetosphaeridium globosum (Turmel et al, 2002), Mesostigma viride (Lemieux et al, 2000), Cyanophora paradoxa (Stirewalt et al, 1995), Cyanidium caldarium (Glockner et al, 2000), Gracilaria tenuistipitata (Hagopian et al, 2004), Porphyra purpurea (Reith and Munholland, 1995), and Odontella sinensis (Kowallik et al, 1995).…”

Section: Update On Sequenced Microalgal Genomesmentioning

confidence: 99%

Agrigenomics for Microalgal Biofuel Production: An Overview of Various Bioinformatics Resources and Recent Studies to Link OMICS to Bioenergy and Bioeconomy

Misra

Panda²,

Parida³

2013

OMICS: A Journal of Integrative Biology

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Microalgal biofuels offer great promise in contributing to the growing global demand for alternative sources of renewable energy. However, to make algae-based fuels cost competitive with petroleum, lipid production capabilities of microalgae need to improve substantially. Recent progress in algal genomics, in conjunction with other ''omic'' approaches, has accelerated the ability to identify metabolic pathways and genes that are potential targets in the development of genetically engineered microalgal strains with optimum lipid content. In this review, we summarize the current bioeconomic status of global biofuel feedstocks with particular reference to the role of ''omics'' in optimizing sustainable biofuel production. We also provide an overview of the various databases and bioinformatics resources available to gain a more complete understanding of lipid metabolism across algal species, along with the recent contributions of ''omic'' approaches in the metabolic pathway studies for microalgal biofuel production.

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“…Xia, a species originally described from China, has been a favourite alga for different types of investigations because it is easily kept in vitro under a broad range of growing conditions (e.g. Macchiavello et al, 1998;Carnicas et al, 1999;Hagopian et al, 2004). In addition to the academic interest, G. tenuistipitata is cultivated in China as a source of agar and as fodder in abalone (Haliotis sp.)…”

Section: Introductionmentioning

confidence: 99%

Life history, morphological variability and growth rates of the life phases of <i>Gracilaria tenuistipitata</i> (Rhodophyta: Gracilariales) <i>in vitro</i>

Barufi¹,

Oliveirã²,

Plastino³

et al. 2010

Sci. Mar.

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SUMMARY: Gracilaria tenuistipitata, a species of commercial interest, is becoming a model organism for studies on red algal physiology and molecular biology as it can be grown easily in vitro under a broad range of conditions. Most of the experiments carried out around the world have been based on a tetrasporophytic clone isolated in our laboratory from a specimen collected in China. Here we describe the life history of this species, give anatomic details of the reproductive structures, illustrate the morphological variability of tetraspore progeny and compare the growth rate of gametophytic and sporophytic thalli. Tetrasporophytic branches showed higher growth rates than gametophytic branches.Keywords: Gracilaria tenuistipitata, life history, reproduction, tetraspore progeny, Rhodophyta, Gracilariales. RESUMEN: Ciclo de vida, variabilidad morfológica y crecimiento de las diferentes generaciones de Gracilaria tenuistipitata (Gracilariales, Rhodophyta) in vitro. -Gracilaria tenuistipitata, una especie de interés comercial, se está convirtiendo en un organismo modelo para estudios en fisiología y biología molecular de algas rojas debido a sus facilidades de crecimiento in vitro bajo una gran variedad de condiciones. La mayoría de los experimentos llevados a cabo a nivel mundial se han basado en un clon tetrasporofítico aislado en nuestro laboratorio, a partir de un espécimen recolectado en China. En este trabajo, se describe el ciclo de vida de esta especie, se dan detalles anatómicos de sus estructuras reproductoras, se ilustra la variabilidad morfológica de la progenie de tetrasporas y se compara el crecimiento de talos gametofíticos y tetrasporofíticos. Talos tetrasporofíticos presentaron tasas de crecimiento más elevadas que los talos gametofíticos.

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Comparative Analysis of the Complete Plastid Genome Sequence of the Red Alga Gracilaria tenuistipitata var. liui Provides Insights into the Evolution of Rhodoplasts and Their Relationship to Other Plastids

Cited by 112 publications

References 79 publications

A common red algal origin of the apicomplexan, dinoflagellate, and heterokont plastids

A common red algal origin of the apicomplexan, dinoflagellate, and heterokont plastids

Agrigenomics for Microalgal Biofuel Production: An Overview of Various Bioinformatics Resources and Recent Studies to Link OMICS to Bioenergy and Bioeconomy

Life history, morphological variability and growth rates of the life phases of <i>Gracilaria tenuistipitata</i> (Rhodophyta: Gracilariales) <i>in vitro</i>

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