Linked Life Data

21586401

Source:http://linkedlifedata.com/resource/pubmed/id/21586401

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2011-5-18
pubmed:abstractText
The low efficiency of somatic cell nuclear transfer (SCNT) is a significant barrier to the production of highly valuable transgenic livestock. It is generally believed that the principal cause of the low SCNT efficiency is the aberrant nuclear epigenetic reprogramming of donor somatic cell. DNA methylation is a major epigenetic modification of the genome and plays a crucial role in nuclear reprogramming during SCNT. In order to assess whether the abnormal epigenetic modifications of the imprinted gene in placenta are correlated with the development abnormality and death of the cloned transgenic calves, the DNA methylation patterns of PEG10 were compared in the placentas from different kinds of cattle. This comparison included transgenic cloned calves died during perinatal stage and showed developmental defects (Death group), transgenic cloned calves survived and lived on healthily (Live group) and the normal reproduced calves (N group) used as the control group analyzed by Bisulfite Sequencing PCR (BSP) method and Combined Bisulfite Restriction Analy-sis (COBRA). Comparing to the control group, PEG10 gene in the Death group showed abnormal hypermethylation, but was not significant different in methylation level from the Live group. It can be postulated from the results that the incom-plete or abnormal DNA methylation epigenetic reprogramming of imprinting gene in placenta may be one of the main causes of the abnormal development and death of the transgenic cloned cattle.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0253-9772
pubmed:author
pubmed:issnType
Print
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
533-8
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
[The methylation status of PEG10 in placentas of cloned transgenic calves].
pubmed:affiliation
College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Reproductive Endocrinology & Embryo Biotech-nology, Ministry of Agriculture, Yangling 712100, China. sujianmin@gmail.com
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't