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学科主题: Fisheries; Marine & Freshwater Biology
题名: Complex mutation at a microsatellite locus in sturgeons: Acipenser sinensis, A-schrenckii, A-gueldenstaedtii and A-baerii
作者: Shao, Z; Lek, S; Chang, J
通讯作者: Chang, J, Chinese Acad Sci, Inst Hydrol, State Key Lab Freshwater Ecol & Biotech, Wuhan 430072, Peoples R China
关键词: MITOCHONDRIAL-DNA ; GENETIC-VARIATION ; LENGTH VARIATION ; SIZE HOMOPLASY ; EVOLUTION ; CONSERVATION ; SEQUENCES ; PATTERNS ; SCAPHIRHYNCHUS ; TRANSMONTANUS
刊名: JOURNAL OF APPLIED ICHTHYOLOGY
发表日期: 2005-02-01
卷: 21, 期:1, 页:2-6
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrol, State Key Lab Freshwater Ecol & Biotech, Wuhan 430072, Peoples R China; Univ Toulouse 3, CNRS, Ctr Ecol Syst Aquat Continentaux, F-31062 Toulouse, France
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Fisheries ; Marine & Freshwater Biology
研究领域[WOS]: Fisheries ; Marine & Freshwater Biology
摘要: Cross-species amplifications of microsatellite locus Spl-106, which was originally screened from the genome of shovelnose sturgeon (Scaphirhynchus platorynchus) with a perfect TAGA repeat motif, were carried out in four other species of the genera Acipenser. A total of 34 polymerase chain reaction (PCR) products representing 16 different alleles of this locus was sequenced. Sequence analysis results showed that besides the number changes of repeat units, many mutational events, such as single-base substitutions and various insertion/deletion (indels) occurred not only at species level but also at individual level, even among the different alleles within the same individual. The repeat motifs varied from perfect (TAGA)n array to perfect compound (TAAA)m (GAAA)n and perfect or imperfect compound (TAAA)m (TAGA)n (TAAA)x arrays in different species and different individuals. The evolution dynamics of this locus in sturgeons was inferred in that it may evolve from a single perfect to different perfect or imperfect compounds.
英文摘要: Cross-species amplifications of microsatellite locus Spl-106, which was originally screened from the genome of shovelnose sturgeon (Scaphirhynchus platorynchus) with a perfect TAGA repeat motif, were carried out in four other species of the genera Acipenser. A total of 34 polymerase chain reaction (PCR) products representing 16 different alleles of this locus was sequenced. Sequence analysis results showed that besides the number changes of repeat units, many mutational events, such as single-base substitutions and various insertion/deletion (indels) occurred not only at species level but also at individual level, even among the different alleles within the same individual. The repeat motifs varied from perfect (TAGA)n array to perfect compound (TAAA)m (GAAA)n and perfect or imperfect compound (TAAA)m (TAGA)n (TAAA)x arrays in different species and different individuals. The evolution dynamics of this locus in sturgeons was inferred in that it may evolve from a single perfect to different perfect or imperfect compounds.
关键词[WOS]: MITOCHONDRIAL-DNA ; GENETIC-VARIATION ; LENGTH VARIATION ; SIZE HOMOPLASY ; EVOLUTION ; CONSERVATION ; SEQUENCES ; PATTERNS ; SCAPHIRHYNCHUS ; TRANSMONTANUS
语种: 英语
WOS记录号: WOS:000226962800002
ISSN号: 0175-8659
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9316
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrol, State Key Lab Freshwater Ecol & Biotech, Wuhan 430072, Peoples R China
2.Univ Toulouse 3, CNRS, Ctr Ecol Syst Aquat Continentaux, F-31062 Toulouse, France

Recommended Citation:
Shao, Z; Lek, S; Chang, J.Complex mutation at a microsatellite locus in sturgeons: Acipenser sinensis, A-schrenckii, A-gueldenstaedtii and A-baerii,JOURNAL OF APPLIED ICHTHYOLOGY,2005,21(1):2-6
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