Abstract：
:A crucial role for the cranial neural crest in head development has been established for both actinopterygian fishes and tetrapods. It has been claimed, however, that the neural crest is unimportant for head development in the Australian lungfish (Neoceratodus forsteri), a member of the group (Dipnoi) which is commonly considered to be the living sister group of the tetrapods. In the present study, we used scanning electron microscopy to study cranial neural crest development in the Australian lungfish. Our results, contrary to those of Kemp, show that cranial neural crest cells do emerge and migrate in the Australian lungfish in the same way as in other vertebrates, forming mandibular, hyoid, and branchial streams. The major difference is in the timing of the onset of cranial neural crest migration. It is delayed in the Australian lungfish in comparison with their living sister group the Lissamphibia. Furthermore, the delay in timing between the emergence of the hyoid and branchial crest streams is very long, indicating a steeper anterior-posterior gradient than in amphibians. We are now extending our work on lungfish head development to include experimental studies (ablation of selected streams of neural crest cells) and fate mapping (using fluoresent tracer dyes such as Dil) to document the normal fate as well as the role in head patterning of the cranial neural crest in the Australian lungfish.
journal_name
Evol Devjournal_title
Evolution & developmentauthors
Falck P,Joss J,Olsson Ldoi
10.1046/j.1525-142x.2000.00061.xkeywords:
subject
Has Abstractpub_date
2000-07-01 00:00:00pages
179-85issue
4eissn
1520-541Xissn
1525-142Xjournal_volume
2pub_type
杂志文章abstract：:The development of the coeloms is described in an echinoid with an abbreviated larval development and shows the early morphogenesis of the coeloms of the adult stage. The development is described from images obtained by laser scanning confocal microscopy. The development in Heliocidaris erythrogramma is asymmetric wit...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2011.00492.x
更新日期：2011-07-01 00:00:00
abstract：:Understanding the genetic and molecular mechanisms of morphological evolution is one of the greatest challenges in evolutionary biology. Sexually dimorphic traits, which often evolve at a high rate due to their involvement in mate choice and sexual selection, present unique opportunities for investigating changes in d...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.2002.02017.x
更新日期：2002-07-01 00:00:00
abstract：:Pax family genes encode a class of transcription factors that regulate various developmental processes. To shed light on the evolutionary history of these genes in Panarthropoda (Onychophora + Tardigrada + Arthropoda), we analyzed the Pax repertoire in the embryonic and adult transcriptomes of the onychophoran Euperip...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12110
更新日期：2015-01-01 00:00:00
abstract：:In termites, the capacity of workers to differentiate into neotenic reproductives is an important characteristic that deserves particular attention. To gain insight into the differentiation pathway, the potentialities of workers and the endocrinal changes during the formation of neotenics were compared in two sympatri...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2011.00464.x
更新日期：2011-03-01 00:00:00
abstract：:The morphogenesis of a gut from the endoderm has been well studied among the animal kingdom and is also well described in the nematode Caenorhabditis elegans. But are there other ways to build a nematode intestine? Sulston et al. (1983) described a different intestinal cell lineage in the species Panagrellus redivivus...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2006.00108.x
更新日期：2006-07-01 00:00:00
abstract：:The N-terminal region of human HOXA13 has seven discrete polyalanine tracts. Our previous analysis of these tracts in multiple major vertebrate clades suggested that three are mammal-specific. We now report the N-terminal HOXA13 repetitive tract structures in the monotreme Tachyglossus aculeatus (echidna). Contrary to...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2008.00254.x
更新日期：2008-07-01 00:00:00
abstract：:How do proteins evolve while maintaining their function? Previous studies find a highly stringent structure/function relationship between the Drosophila melanogaster testis-specific tubulin beta2 and the spermtail axoneme, such that small changes in the beta2 protein render it unable to generate a motile axoneme. This...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2006.05072.x
更新日期：2006-01-01 00:00:00
abstract：:Reproductive division of labor is one of the crucial features in social insects, however, the developmental mechanisms leading to modifications in the reproductive apparatus of workers are still not very clear. Ants show a remarkable diversity in the morphological specialization of the worker's reproductive apparatus,...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12182
更新日期：2016-03-01 00:00:00
abstract：:The proximo-distal axis of the arthropod leg is patterned by mutually antagonistic developmental expression domains of the genes extradenticle, homothorax, dachshund, and Distal-less. In the deutocerebral appendages (the antennae) of insects and crustaceans, the expression domain of dachshund is frequently either abse...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12005
更新日期：2012-11-01 00:00:00
abstract：:The ossification sequence of Myiopsitta monachus was determined. Myiopsitta has a similar sequence to other altricial birds, with delayed skeletons compared to precocial species. The hindlimbs ossify before the forelimbs, a condition that could be linked to altriciality. To determine the stability of the sequences of ...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12211
更新日期：2017-01-01 00:00:00
abstract：:Astacin-like metalloproteases are ubiquitous in the animal kingdom but their phylogenetic relationships and ancient functions within the Metazoa are unclear. We have cloned and characterized four astacin-like cDNAs from the marine hydroid Hydractinia echinata and performed a database search for related genes in the dr...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2006.00092.x
更新日期：2006-03-01 00:00:00
abstract：:Both individual sex and population sex ratio can affect lifetime reproductive success. As a result, multiple mechanisms have evolved to regulate sexual phenotype, including adult sex change in fishes. While adult sex change is typically socially regulated, few studies focus on the non-chromosomal mechanisms regulating...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12195
更新日期：2016-07-01 00:00:00
abstract：:Eye and head morphology vary considerably among insects and even between closely related species of Drosophila. Species of the D. melanogaster subgroup, and other Drosophila species, exhibit a negative correlation between eye size and face width (FW); for example, D. mauritiana generally has bigger eyes composed of la...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12027
更新日期：2013-07-01 00:00:00
abstract：:Vertebrae are serially homologous structures with tight integration through their evolution and development. However, in mammals, the thoracic and lumbar regions are morphologically and functionally differentiated. We test the hypothesis that locomotor specialization is associated with altered post-natal growth patter...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12069
更新日期：2014-03-01 00:00:00
abstract：:The phylogenetic positions of frogs, salamanders, and caecilians have been difficult to establish. Data matrices based primarily on Paleozoic taxa support a monophyletic origin of all Lissamphibia but have resulted in widely divergent hypotheses of the nature of their common ancestor. Analysis that concentrates on the...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.2003.03038.x
更新日期：2003-05-01 00:00:00
abstract：:The full-length sequence and developmental expression of amphioxus AmphiFoxE4 are described. Transcripts of the gene are first detected in the pharyngeal endoderm, where the club-shaped gland is forming and subsequently in the definitive gland itself. AmphiFoxE4 is closely related to vertebrate genes encoding the thyr...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.2002.01057.x
更新日期：2002-01-01 00:00:00
abstract：:The vertebrate Zic gene family encodes C2H2 zinc finger transcription factors closely related to the Gli proteins. Zic genes are expressed in multiple areas of developing vertebrate embryos, including the dorsal neural tube where they act as potent neural crest inducers. Here we describe the characterization of a Zic ...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.2003.03020.x
更新日期：2003-03-01 00:00:00
abstract：:The relation of developmental plasticity to evolutionary diversification is a key component of evolutionary theory involving developmental bias, but the basis of the relationship varies among traits and among taxa. Here I review some scenarios of how structural integration during early organogenesis could influence th...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12323
更新日期：2020-01-01 00:00:00
abstract：:This essay recapitulates major paths followed by the Russian tradition of what we refer to today as evolutionary developmental biology ("evo-devo"). The article addresses several questions regarding the conceptual history of evolutionary embryological thought in its particularly Russian perspective: (1) the assertion ...
journal_title：Evolution & development
pub_type： 历史文章,杂志文章
doi：10.1111/j.1525-142X.2011.00518.x
更新日期：2012-01-01 00:00:00
abstract：:In Insecta and malacostracan Crustacea, neurons in the ventral ganglia are generated by the unequal division of neuronal stem cells, the neuroblasts (Nbs), which are arranged in a stereotyped, grid-like pattern. In malacostracans, however, Nbs originate from ectoteloblasts by an invariant lineage, whereas Nbs in insec...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.2001.003003154.x
更新日期：2001-05-01 00:00:00
abstract：:It has recently been shown that the three metazoan superphyla that are recognized on the basis of 18S rDNA phylogenies--ecdysozoans, lophotrochozoans, and deuterostomes--each have characteristic Hox genes. This observation has been taken further, and these "signature" Hox genes have been looked for in taxa of uncertai...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1046/j.1525-142x.2000.00075.x
更新日期：2000-11-01 00:00:00
abstract：:In many respects, reptile hatchlings are fully functional, albeit miniature, adults. This means that the adult morphology must emerge during embryonic development. This insight emphasizes the connection between the mechanisms that generate phenotypic variation during embryonic development and the action of selection o...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12221
更新日期：2017-05-01 00:00:00
abstract：:Mollusks have a wide variety of body plans, which develop through conserved early embryogenesis, namely spiral embryonic development and trochophore larvae. Although the comparative study of mollusks has attracted the interest of evolutionary developmental biology researchers, less attention has been paid to bivalves....
journal_title：Evolution & development
pub_type： 杂志文章,评审
doi：10.1111/ede.12334
更新日期：2020-11-01 00:00:00
abstract：:Reef-building scleractinian corals widely engage in symbiotic relationships with Symbiodinium dinoflagellates (zooxanthellae), which reside inside cells of the gastrodermis. In most cases, sexually produced larvae acquire their symbionts from the environment in the early developmental stages preceding settlement; howe...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2007.00173.x
更新日期：2007-07-01 00:00:00
abstract：:The larval skeletons of sea urchins show considerable morphological diversity, even between closely related species, although the evolutionary history and functional significance of this diversity are poorly understood. To infer the evolutionary history of the skeletal morphology, we focused on echinometrid species fo...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2008.00277.x
更新日期：2008-09-01 00:00:00
abstract：:"Hormone manipulation" is being used increasingly in evo-devo studies as the sole or primary technique to investigate the regulation of insect polymorphism by hormones, most notably juvenile hormone (JH). This manuscript critically evaluates the limitations and strengths of this indirect method for inferring aspects o...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2007.00181.x
更新日期：2007-09-01 00:00:00
abstract：:The highly specialized cephalopod cardiovascular system has long been considered a valuable model for understanding the evolution of circulatory systems. Despite the number of studies devoted to this topic, the developmental regulatory mechanisms remain largely unexplored. Here, we focus on the vascular endothelial gr...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2009.00388.x
更新日期：2010-01-01 00:00:00
abstract：:The expression of GpANTL1, a homolog of AINTEGUMENTA (ANT) found in the gymnosperm Gnetum parvifolium, was analyzed by RT-PCR and in situ hybridization. GpANTL1 was expressed in the leaf primordia, root tips, and young ovules. In the ovulate axis, expression was detected as four distinct rings around the outer, middle...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/j.1525-142X.2008.00237.x
更新日期：2008-05-01 00:00:00
abstract：:Heterochrony is an important mechanism in the evolution of amphibians. Although studies have centered on the relationship between size and shape and the rates of development, ossification sequence heterochrony also may have been important. Rigorous, phylogenetic methods for assessing sequence heterochrony are relative...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12043
更新日期：2013-09-01 00:00:00
abstract：:The astounding variety of angiosperm flower morphologies has evolved in response to many selective forces. Flower development is highly coordinated and involves developmental associations between size and shape, ontogenetic allometry, which in turn affect the morphology of mature flowers. Although ontogenetic allometr...
journal_title：Evolution & development
pub_type： 杂志文章
doi：10.1111/ede.12246
更新日期：2018-01-01 00:00:00
