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ID 307
file
creator
Kashiwagi, Keiko
Kashiwagi, Akihiko
NDC
Zoology
abstract
An investigation was undertaken to test the validity of the hypothesis that edema is the major cause of the low viability of haploid embryos and tadpoles. Chimeras were produced by exchanging the anterior and posterior parts of haploid embryos (H) with those of diploid embryos (D) by joining them after cutting transversely at the site immediately before and behind the pronephros (p). It was found that severe edema usually found in haploid embryos at the early stage is remarkably diminished in the Dp・H and H・pD chimeras which have diploid pronephroi in the anterior and posterior diploid halves, respectively. Especially, the Dp・H chimeras which consist of anterior diploid halves with pronephroi and posterior haploid halves are comparatively good in development. Of the Dp・H chimeras, 18 (9.7%) in Rana nigromaculata and 15 (10%) in Rana japonica attained the stage immediately before or after the completion of metamorphosis.
journal title
Scientific report of the Laboratory for Amphibian Biology
volume
Volume 12
start page
37
end page
53
date of issued
1993-03
publisher
Institute for Amphibian Biology, Hiroshima University
contributor
国立情報学研究所
date of created
2006-03-21
issn
0386-3166
ncid
SelfDOI
language
eng
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Science
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