Category: Uncategorized

FIRST SPECIATION GENES. "Pervasive adaptive evolution among interactors of the Drosophila hybrid inviability gene, Nup96." https://lnkd.in/eKz785T View in LinkedIn

DIATOMS VS PLANTS. "While there is evidence of significant gene transfer from the plastid and mitochondrial genomes to the nucleus in higher plants and dinoflagellates, in the diatoms no proof of such gene transfers from the mitochondria to the nucleus were found. The general properties of diatom mitochondrial genomes are indeed more similar to animal than to plant mitochondrial genomes." http://jxb.oxfordjournals.org/content/early/2012/01/20/jxb.err441.full View in LinkedIn

BEYOND DARWIN. "These new findings, along with those from other hybrid incompatibility genes, suggest something that Darwin could never have imagined. In particular, genetic conflicts — involving selfish transposons, repetitive DNAs, drive elements and so forth— rather than good old-fashioned ecological adaptation could drive the divergence that in turn gives rise to hybrid incompatibilities and, consequently, to species differentiation." http://www.sciencedirect.com/science/article/pii/S0960982206026649 View in LinkedIn

DIATOM GENE SHUFFLING. "The collected data suggests multiple gene transfers from the endo- and exosymbiont, from one genome to another, such as genes transferred from the algal plastid to the algal nucleus, and then incorporated into the host, in this case diatom, nucleus." http://jxb.oxfordjournals.org/content/early/2012/01/20/jxb.err441.full View in LinkedIn

HYBRID STERILITY. "Today we would say that hybrid sterility and inviability are caused by incompatible epistatic interactions between genes that have functionally diverged between species." https://lnkd.in/eV72BRp View in LinkedIn

COMPLEX DIATOM PICTURE. "Considering that such a fusion is thought to involve two nuclear genomes, two mitochondrial genomes, and one plastid genome, the process must have been highly complex and, because it happened so long ago, reconstructing its history has proven extremely difficult." http://jxb.oxfordjournals.org/content/early/2012/01/20/jxb.err441.full View in LinkedIn

SPECIES BARRIER AND EPIGENETICS. "Evolutionary biologists have long recognized that the sterility and inviability of species hybrids must involve incompatible epistatic interactions between two (or more) genes. The first pair of such hybrid incompatibility genes has now been identified." https://lnkd.in/eV72BRp View in LinkedIn

UNIQUE DIATOM GENE SET. "Following secondary endosymbiosis, the different genomes of the exosymbiont and endosymbiont are predicted to have combined to form a novel and unique set of genes dispersed within the nuclear, mitochondrial, and chloroplast genomes." http://jxb.oxfordjournals.org/content/early/2012/01/20/jxb.err441.full View in LinkedIn

EXOSYMBIONT. "Like other eukaryotes, diatom cells contain mitochondria evolved from a single primary endosymbiotic event involving an α-proteobacterium. No trace of mitochondria remain in the secondary endosymbiont, and so it is believed that diatom mitochondria are derived from the exosymbiont." http://jxb.oxfordjournals.org/content/early/2012/01/20/jxb.err441.full View in LinkedIn

DIATOMS. "In contrast to higher plants and green algae which derive from a primary endosymbiosis, diatoms are now believed to originate from a serial secondary endosymbiosis involving both green and red algae and a heterotrophic exosymbiont host." A Dutch doll ancestry. https://lnkd.in/eFCkB94 View in LinkedIn