The timing of expression of four actin genes and an RNA polymerase III-transcribed repeated sequence is correct in hybrid embryos of the sea urchin species Strongylocentrotus purpuratus and Lytechinus pictus.
The timing of expression of four actin genes and an RNA polymerase III-transcribed repeated sequence is correct in hybrid embryos of the sea urchin species Strongylocentrotus purpuratus and Lytechinus pictus.
复制标题
在海胆物种 Strongylocentrotus purpuratus 和 Lytechinus pictus 的杂交胚胎中，四个肌动蛋白基因和 RNA 聚合酶 III 转录的重复序列的表达时间是正确的。
DOI：
10.1016/0012-1606(88)90439-3
复制
发表时间：
1988
影响因子：
2.7
通讯作者：
CrainJr,WR
中科院分区：
文献类型：
--
作者：
Bullock,BP;Nisson,PE;CrainJr,WR
在S.purpuratusactin的四个基因（单个肌肉基因M和三个细胞骨架基因CyI、CyIIIa和CyIIIb）的mRNA和来自RNA聚合酶III转录的重复序列家族（SURF1）的转录物的积累过程中，跟踪了S.purpuratus杂交胚胎的整个早期发育过程。 purpuratus 和 Lytechinus pictus。每个肌动蛋白 mRNA 均出现在以任一方向构建的杂交胚胎中（Sp♀ ×Lp♂ 和 Lp♀ ×Sp♂），与它们出现在正常 S 中的时间大致相同。紫癜胚胎。重复序列家族 SURF1 的转录本也在正确的时间出现在杂交胚胎中，但当由父本基因组 (Lp♀ ×Sp♂) 贡献时，其存在水平大幅降低。这些基因的准确时间表达表明两组杂交胚胎都含有调节其转录时间的因子。
The accumulation of the mRNAs from fourStrongylocentrotus purpuratusactin genes (the single muscle gene M, and three cytoskeletal genes CyI, CyIIIa, and CyIIIb) and of transcripts from an RNA polymerase III-transcribed repeated sequence family (SURF1) was followed throughout the early development of hybrid embryos ofS. purpuratusandLytechinus pictus. Each of the actin mRNAs appeared in hybrid embryos, constructed in either direction (Sp♀ ×Lp♂ andLp♀ ×Sp♂), at approximately the same time that they appear in normalS. purpuratusembryos. Transcripts of the repeated sequence family SURF1 also appeared at the correct time in the hybrid embryos, but were present at substantially reduced levels when contributed by the paternal genome (Lp♀ ×Sp♂). The accurate temporal expression of these genes indicates that both sets of hybrid embryos contain factors which regulate the timing of their transcription.