Sexual reproduction potential implied by functional analysis of SPO11 in Phaeodactylum tricornutum | |
Mao, Yufeng; Guo, Li; Luo, Yan3; Tang, Zhihong; Li, Wei2; Dong, Wen | |
刊名 | GENE
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2020 | |
卷号 | 757期号:x页码:- |
关键词 | Functional rescue Meiotic gene Phaeodactylum tricornutum Sexual reproduction SPO11 |
ISSN号 | 0378-1119 |
DOI | 10.1016/j.gene.2020.144929 |
英文摘要 | Phaeodactylum tricornutum is a model microalgae that is widely used to study diatom physiology and ecology. Since the meiotic process and sexual cycle have never been observed directly, P. tricornutum has been considered to be an asexual species. However, phylogenetic analysis of the P. tricornutum genome has revealed a series of meiosis-specific gene homologues in this species. We identified two copies of differently transcribed SPO11 homologs that contain the conserved motifs of Winged-helix and Toprim domains. The homolog PtSPO11-3 interacts with TopoVIB in yeast two-hybrid analysis, whereas the homolog PtSPO11-2 could rescue the sporulation defect of a Spo11 yeast mutant strain. PtSPO11-2 was also found to be significantly up-regulated at low temperatures in P. tricornutum and its key catalytic residue was important to the homolog's function in sporulation. The results herein provide positive clue that meiosis and sexual reproduction could exist in this diatom. |
学科主题 | Genetics & Heredity |
语种 | 英语 |
WOS记录号 | WOS:000564685500004 |
内容类型 | 期刊论文 |
源URL | [http://ir.xtbg.org.cn/handle/353005/11884] ![]() |
专题 | 西双版纳热带植物园_园林园艺部 |
作者单位 | 1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China 2.Ocean Univ China, Coll Marine Life, 5 Yushan Rd, Qingdao 266003, Peoples R China 3.Chinese Acad Sci, Inst Zool, State Key Lab Stem Cell & Reprod Biol, Beijing 100101, Peoples R China |
推荐引用方式 GB/T 7714 | Mao, Yufeng,Guo, Li,Luo, Yan,et al. Sexual reproduction potential implied by functional analysis of SPO11 in Phaeodactylum tricornutum[J]. GENE,2020,757(x):-. |
APA | Mao, Yufeng,Guo, Li,Luo, Yan,Tang, Zhihong,Li, Wei,&Dong, Wen.(2020).Sexual reproduction potential implied by functional analysis of SPO11 in Phaeodactylum tricornutum.GENE,757(x),-. |
MLA | Mao, Yufeng,et al."Sexual reproduction potential implied by functional analysis of SPO11 in Phaeodactylum tricornutum".GENE 757.x(2020):-. |
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