A small scale expression screen identifies tissue specific markers in the Dugesia japonica strain Pek-1

Changxin Ma; Xiaoan Wang; Shuizhou Yu; Guoliang Chai; Hanxia Su; Liang Zheng; Wei Wu

doi:10.1016/S1673-8527(09)60081-3

Volume 37 Issue 9

Sep. 2010

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Abstract

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Article Navigation > Journal of Genetics and Genomics > 2010 > 37(9): 621-635

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A small scale expression screen identifies tissue specific markers in the Dugesia japonica strain Pek-1

doi: 10.1016/S1673-8527(09)60081-3

a
Protein Science Laboratory of the Ministry of Education, School of Life Sciences, Tsinghua University, Beijing 100084, China
b
School of Life Sciences, Ludong University, Yantai 264025, China
c
School of Life Sciences, Xiamen University, Xiamen 361005, China

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Corresponding author: E-mail address: wwu@mail.tsinghua.edu.cn (Wei Wu)
Received Date: 2010-03-04
Accepted Date: 2010-04-27
Rev Recd Date: 2010-04-23

Available Online: 2010-10-07

Publish Date: 2010-09-20

Abstract

Abstract

Freshwater planaria has tremendous capacity to reform the missing part of the body and therefore is considered as one of the most important model organism for regeneration study. At present,Schmidtea mediterranea and Dugesia japonica are the two major species utilized for laboratory manipulations. Dugesia japonica flatworms are widely distributed in the Far East including Cherry Valley region in the north-west area of Beijing, China. We reported here the establishment of an asexual Dugesia japonica strain Pek-1, as a suitable system for regeneration study. Using morphological, karyotypical as well as phylogenetic analyses, we confirmed that these flatworms indeed belonged to Dugesia japonica. We went on to show that the commonly used in situ probes and immunohistochemistry reagents and protocols were applicable to the Pek-1 strain. Using this strain, we carried out small scale analysis on EST, RNAi and gene expression. We identified 193 unique EST sequences and 65 of them had not been reported in planarian. By RNAi analysis, we showed that 48 genes, when down-regulated individually, had no effect on regeneration. Furthermore, we identified 3 groups of tissue specific expressing genes that were useful for cell lineage analysis. We concluded that the Dugesia japonica Pek-1 strain could be another suitable animal model to regeneration research.
- planarian,
- expression screen

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References(58)

References

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