ライフサイエンスコーパス: hemichordate

1 melanogaster and Saccoglossus kowalevskii (a hemichordate).

2 ns from it (ascidian, vertebrate, echinoderm/hemichordate).

3 min K-dependent carboxylase activity in this hemichordate.

4 n experimentally tractable representative of hemichordates.

5 ene in an indirectly developing enteropneust hemichordate, a representative of the sister group to th

6 tional and expression studies in sea urchin, hemichordate and chordate embryos reveal striking simila

7 atterning may be shared between echinoderms, hemichordates and a putative ambulacrarian ancestor.

8 Domain topography is conserved between hemichordates and chordates despite the fact that hemich

9 uthors considered it variously as related to hemichordates and echinoderms owing to similarities of n

10 chordates and vertebrates) and Ambulacraria (hemichordates and echinoderms).

11 ology, embryology and genomics of chordates, hemichordates and echinoderms, which together make up th

12 urbella is in fact a deuterostome related to hemichordates and echinoderms.

13 s to the animal-vegetal axis, in contrast to hemichordates and indirect-developing echinoderms.

14 In hemichordates and many direct-developing echinoderms, th

15 of disparate forms that include echinoderms, hemichordates and more problematic groups such as vetuli

16 body plan is to become colonial, as seen in hemichordates and tunicates.

17 retained to pattern divergent structures in hemichordates and vertebrates.

18 Genomic comparisons of chordates, hemichordates, and echinoderms can inform hypotheses for

19 Hemichordates are a deuterostome phylum, the sister grou

20 as enteropneust (literally, 'gut-breathing') hemichordates, are marine invertebrates that share featu

21 lacraria, we sequenced transcriptomes for 14 hemichordates as well as 8 echinoderms and complemented

22 blend morphological features of the two main hemichordate body plans, namely the tentacle-less entero

23 een highly conserved within the echinoderm + hemichordate clade, nothing is known about these mechani

24 ned experimentally in several echinoderm and hemichordate classes.

25 e amphioxus have similar organization to the hemichordate cluster, but with different posterior genes

26 out the molecular mechanism underlying early hemichordate development.

27 However, understanding of hemichordate diversity is poor, as evidenced by absence

28 osterior genes specific to Ambulacraria (the hemichordate-echinoderm clade), two forming an inverted

29 y trajectories leading from this ancestor to hemichordates, echinoderms and chordates.

30 hordates) and three other invertebrate taxa: hemichordates, echinoderms and Xenoturbella.

31 expressed in vertebrate-like arrangements in hemichordate ectoderm, and homologous genetic mechanisms

32 ains a 588 kb cluster of 11 orthologs of the hemichordate genes, ordered differently, plausibly refle

33 The hemichordate genomes exhibit extensive conserved synteny

34 nimals, we analyzed the Hox complexes of two hemichordate genomes.

35 hordates and chordates despite the fact that hemichordates have a diffuse nerve net, whereas chordate

36 First, echinoderms and hemichordates have similar feeding larvae, but build a n

37 ms have either radial or bilateral symmetry, hemichordates include bilateral enteropneust worms and c

38 ice and a functionally equivalent element in hemichordates, indicating an ancient origin of the Shh z

39 e early-diverged deuterostomes (echinoderms, hemichordates), it is uncertain whether the ancestral ce

40 e of a major difference in body plan between hemichordate larval and adult forms and confirm the hypo

41 ly reflecting rearrangements of an ancestral hemichordate-like ambulacrarian cluster.

42 These represent two of the three major hemichordate lineages, the third being the indirect deve

43 mal species, including vertebrate, ascidian, hemichordate, mollusc, annelid and arthropod, but not in

44 n and ciliary ultrastructure (also shared by hemichordates), or as among the most primitive of Bilate

45 Notably, hemichordates possess a deuterostome-specific genomic cl

46 soderm in the development of an enteropneust hemichordate, Ptychodera flava, and the expression of th

47 yos, on the indirect developing enteropneust hemichordate, Ptychodera flava.

48 Unlike echinoids, indirect developing hemichordates retain the larval body axes and major larv

49 d that the hh gene of a colonial pterobranch hemichordate, Rhabdopleura compacta, is expressed in a d

50 treatments ventralize the direct developing hemichordate, S. kowalevskii indicating that a common pa

51 ith putative NGFFFamide-like peptides in the hemichordate Saccoglossus kowalevskii (NGFWNamide and NG

52 ort to resolve these issues, we examined the hemichordate Saccoglossus kowalevskii and studied the ex

53 Several pNPs were also identified from the hemichordate Saccoglossus kowalevskii and the cephalocho

54 ure similar to that of the direct developing hemichordate Saccoglossus kowalevskii.

55 ica and isthmic organizer-are present in the hemichordate Saccoglossus kowalevskii.

56 n of recent studies from a direct developing hemichordate (Saccoglossus kowalevskii), very little is

57 o its ortholog in a harrimaniid enteropneust hemichordate, Saccoglossus kowalevskii.

58 d adult body plans of an indirect developing hemichordate, Schizocardium californicum [2].

59 Allied to pterobranch hemichordates, small colonial tube dwellers, modern ente

60 In this Primer, we introduce representative hemichordate species with contrasting modes of developme

61 ogous amino acids, including new data from a hemichordate, starfish and Xenoturbella.

62 The chordates, hemichordates (such as acorn worms) and echinoderms (suc

63 Comparison with hemichordates suggests that anterior Otx and posterior G

64 Acorn worms, or enteropneusts, are vermiform hemichordates that occupy an important position in deute

65 p ocean is home to a group of broad-collared hemichordates--the so-called 'lophenteropneusts'--that h

66 s will allow future comparative studies with hemichordates to take into account molecular differences

67 e latest common ancestor of echinoderms plus hemichordates used a maximal indirect mode of developmen

68 data place the Ambulacraria (echinoderms and hemichordates) within the Deuterostomia and as the siste