D. Bhattacharya

Publications352
h-index76
Citations18,497
Highly Influential Citations1,194
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A molecular timeline for the origin of photosynthetic eukaryotes.
TLDR
An ancient (late Paleoproterozoic) origin of photosynthetic eukaryotes with the primary endosymbiosis that gave rise to the first alga having occurred after the split of the Plantae from the opisthokonts sometime before 1,558 MYA is supported.
Green Evolution and Dynamic Adaptations Revealed by Genomes of the Marine Picoeukaryotes Micromonas
TLDR
It is found that genomes from two isolates shared only 90% of their predicted genes, and divergence appears to have been facilitated by selection and acquisition processes that actively shape the repertoire of genes that are mutually exclusive between the two isolate differently than the core genes.
DEFINING THE MAJOR LINEAGES OF RED ALGAE (RHODOPHYTA) 1
TLDR
This study determined 48 sequences of the PSI P700 chl a apoprotein A1 (psaA) and rbcL coding regions and established a robust red algal phylogeny to identify the major clades and proposes that the Rhodophyta contains two new subphyla, the Cyanidiophytina with a single class, the cyanidiophyceae, and the Rhodology with six classes.
The origin and establishment of the plastid in algae and plants.
TLDR
Recent genomic and phylogenomic approaches have significantly clarified plastid genome evolution, the movement of endosymbiont genes to the "host" nuclear genome (endosYmbiotic gene transfer), and plastsid spread throughout the eukaryotic tree of life.
Draft Assembly of the Symbiodinium minutum Nuclear Genome Reveals Dinoflagellate Gene Structure
TLDR
The first draft assembly of a dinoflagellate nuclear genome is described, providing insights into its genome organization and gene inventory and laying the foundation for future studies of this remarkable group of eukaryotes.
Genomic Footprints of a Cryptic Plastid Endosymbiosis in Diatoms
TLDR
Using a genome-wide approach to estimate the “green” contribution to diatoms, it is identified >1700 green gene transfers, constituting 16% of the diatom nuclear coding potential.
Phylogenomic analysis supports the monophyly of cryptophytes and haptophytes and the association of rhizaria with chromalveolates.
TLDR
Maximum likelihood and Bayesian analyses of phylogenomics with expressed sequence tag data from the ecologically important coccolithophore-forming alga Emiliania huxleyi and the plastid-lacking cryptophyte Goniomonas cf.
The natural history of group I introns.
TLDR
The explosion of new sequence data has facilitated the use of comparative methods to understand group I intron evolution in a broader context and to generate hypotheses about intron insertion, splicing and spread that can be tested experimentally.
Hidden biodiversity of the extremophilic Cyanidiales red algae
TLDR
The research revealed an unexpected level of genetic diversity among Cyanidiales that revises current thinking about the phylogeny and biodiversity of this group and predicts that future environmental PCR studies will significantly augment known biodiversity that is discovered and demonstrate the Cyanidials to be a species‐rich branch of red algal evolution.
A single origin of the peridinin- and fucoxanthin-containing plastids in dinoflagellates through tertiary endosymbiosis
TLDR
It is postulated that the plastid of peridinin- and fucoxanthin-containing dinoflagellates originated from a haptophyte tertiary endosymbiosis that occurred before the split of these lineages.
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