Elevated expression of Piwi and piRNAs in ovaries of triploid crucian carp
Elevated expression of Piwi and piRNAs in ovaries of triploid crucian carp
复制标题
三倍体鲫鱼卵巢中 Piwi 和 piRNA 的表达升高
DOI:
10.1016/j.mce.2013.11.019
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发表时间:
2014-03
影响因子:
4.1
通讯作者:
Min Tao
中科院分区:
文献类型:
--
作者:
Yi Zhou;Huan Zhong;Shaojun Liu;Fan Yu;Jie Hu;Chun Zhang;Min Tao
Increasing piRNAs provide RNA-interference pathways to regulate transposons and gene expression in germline cells. We demonstrate thatPiwitranscripts are exclusively expressed in adult testes and ovaries in teleosts, with triploids showing the highest Piwi expression in the ovaries. Studiesin vivoandin vitroshowed that hCG and E2 treatment suppressed Piwi expression. We further cloned 200 small RNAs in the three kinds of fish. Seven piRNAs were obtained from all the three different ploidy fishes. During ovulation, five piRNAs showed significantly higher expression in the ovaries of sterile triploids than fertile diploids and tetraploids. Furthermore, E2 suppressed the expression of the six piRNAs at different levelsin vivoandin vitro. The present study bridges the gap between the HPG axis and Piwi–piRNA pathway by suggesting that a dysfunctional HPG axis abrogated the piRNA suppression in triploid fish.
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影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
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影响因子:
3.6
作者:
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通讯作者:
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