[PDF] Top 20 Evolutionary crossroads in developmental biology: amphioxus

... that amphioxus do not possess such ...the amphioxus embryo ...of amphioxus, whereas orthologues of other vertebrate neural crest specifier genes are not expressed in this region (Yu et ...In ... See full document

... this Evolutionary crossroads in development biology series (Bertrand and Escriva, 2011; Lemaire, ...and developmental studies of cyclostomes, as we discuss ... See full document

... basic developmental ‘tool kit’ identified in flowering plants are conserved in the genome of the moss Physcomitrella patens (Floyd and Bowman, 2007; Rensing et ...new developmental processes have ... See full document

... the evolutionary relationship between cnidarian and vertebrate stem cells involved searching sequenced cnidarian genomes and EST datasets for homologs of the four pluripotency genes that are known to be expressed ... See full document

... evolutionary separation from a common ancestor more than 500 million years ago (Hinman et al., 2003; Hinman et al., 2007). More distant comparisons show that many of the genes that operate early in the sea urchin ... See full document

... Fig. 5. Evolution of cAMP signalling in Dictyostelia . A tentative hypothesis for the evolution of developmental cAMP signalling in Dictyostelia from a cAMP-mediated stress response in the solitary ancestor. The ... See full document

... eRNAi complements the global affects of pRNAi by facilitating gene knockdown in specific cells, in the context of other cells in the tissue, and at later developmental stages. Two different approaches have been ... See full document

... the developmental stages of breeding pterobranchs ...coenecium. Developmental stages are indicated below each illustration and the internal organization of the germ layers is indicated (blue, ectoderm; ... See full document

... the developmental genetics of annelid segmentation have thus far been heavily reliant on the candidate gene approach, taking as a starting point the relatively well understood system of segmentation in the fruit ... See full document

... species, including P. mammillata, produce up to a million optically transparent eggs. The ongoing sequencing of the genomes of a range of solitary (Phallusia fumigata, P. mammillata, Halocynthia aurantium, H. roretzi) ... See full document

... on amphioxus molecular and developmental biology or to mention every person ...the amphioxus re- search field was moving ahead in two complementary directions: developmental and ...for ... See full document

... Darwin’s evolutionary ideas and by Kowalevsky’s embryologic findings suggesting that an amphioxus-like creature might have bridged the gap between the invertebrates and the ...new evolutionary ... See full document

... about amphioxus tail ...in amphioxus, with little to no lineage ...cephalochordates, amphioxus blood vessels do contain coelomocytes or amoebocytes with some migratory and endocytic capabilities ... See full document

... rods. Amphioxus in fact possesses two SPARC genes, conserved since the eumetazoan ancestor, both of which are expressed in the notochord dur- ing embryonic development (Bertrand et ... See full document

... in amphioxus is unusual among chordates for being highly asymmetrical, as the mouth appears first on the left side of the head and only shifts to the ventral midline at ...the amphioxus mouth may be an ... See full document

... We use an integrative ‘evo-devo’ approach encompass- ing comparative morphology, developmental biology and protein expression patterns in embryonic cell popula- tions. Specifically, we apply ... See full document

... Research programs in evo – devo are comparative and experimental (Hall 1999; Raff and Love 2004). Increasingly, they involve what Laubichler (2007) calls “evolutionary developmental genetics. ” In pursuit ... See full document

... coordination of ideas across different biological fields. This process of integrating knowledge is due to problem agendas having associated standards of how an adequate framework would look like (Love 2013; see also ... See full document

... and evolutionary aspects discussed in this ...peterian evolutionary economics, starting with Richard Nelson and Sidney Win- ter’s contribution (Nelson and Winter (1974, 1982)) introduced formal models with ... See full document

... Platyhelminthes are classic invertebrate models for studying regeneration and have received renewed attention in the last few decades. The best-characterized group is the planarians, in which the cellular and molecular ... See full document