文献类型： 外文期刊
作者： Xie, H 1 ; Sui, Y 2 ; Chang, FQ 2 ; Xu, Y 2 ; Ma, RC 2 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Agrobiotechnol Res Ctr, Beijing 100089, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Beijing Agrobiotechnol Res Ctr, Beijing 100089, Peoples R China; Capital Normal Univ, Coll Life Sci, Beijing 100037, Peoples R China
期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：5.699； 五年影响因子：5.565 ）
ISSN： 0040-5752
年卷期： 2006 年 112 卷 2 期
页码：
收录情况： SCI
摘要： Sixteen SSR markers including eight EST-SSR and eight genomic SSRs were used for genetic diversity analysis of 23 Chinese and 15 international almond cultivars. EST- and genomic SSR markers previously reported in species of Prunus, mainly peach, proved to be useful for almond genetic analysis. DNA sequences of 117 alleles of six of the 16 SSR loci were analysed to reveal sequence variation among the 38 almond accessions. For the four SSR loci with AG/CT repeats, no insertions or deletions were observed in the flanking regions of the 98 alleles sequenced. Allelic size variation of these loci resulted exclusively from differences in the structures of repeat motifs, which involved interruptions or occurrences of new motif repeats in addition to varying number of AG/CT repeats. Some alleles had a high number of uninterrupted repeat motifs, indicating that SSR mutational patterns differ among alleles at a given SSR locus within the almond species. Allelic homoplasy was observed in the SSR loci because of base substitutions, interruptions or compound repeat motifs. Substitutions in the repeat regions were found at two SSR loci, suggesting that point mutations operate on SSRs and hinder the further SSR expansion by introducing repeat interruptions to stabilize SSR loci. Furthermore, it was shown that some potential point mutations in the flanking regions are linked with new SSR repeat motif variation in almond and peach.
- 相关文献
作者其他论文 更多>>
-
Inheritance of resistance to zucchini yellow mosaic virus and watermelon mosaic virus in watermelon
作者：Xu, Y;Kang, D;Shi, Z;Shen, H;Wehner, T
关键词：
-
ISSR and AFLP markers differ among American watermelon cultivars with limited genetic diversity
作者：Levi, A;Thomas, CE;Newman, M;Reddy, OUK;Zhang, X;Xu, Y
关键词：RAPD; DNA markers; germplasm evaluation; vegetable breeding; Citrullus lanatus
-
Development of SSR markers for the phylogenetic analysis of almond trees from China and the Mediterranean region
作者：Xu, Y;Ma, RC;Xie, H;Liu, JT;Cao, MQ
关键词：expressed sequence tags (ESTs);microsatellites (SSRs);almond;P. communis Fritsch
-
A genetic linkage map for watermelon derived from recombinant inbred lines
作者：Zhang, RB;Xu, Y;Yi, K;Zhang, HY;Liu, LG;Gong, GY;Levi, A
关键词：Citrullus; molecular markers; Fusarium; RAPD; ISSR; SCAR
-
Genetic assessment of watermelon germplasm using the AFLP technique
作者：Che, KP;Liang, CY;Wang, YG;Jin, DM;Wang, B;Xu, Y;Kang, GB;Zhang, HY
关键词：AFLP; cluster analysis; genetic diversity; watermelon; germplasm identification
-
AFLP fingerprint and SCAR marker of watermelon core collection
作者：Che, KP;Xu, Y;Liang, CY;Gong, GY;Weng, ML;Zhang, HY;Jin, DM;Wang, B
关键词：AFLP; variety identification; fingerprint; SCAR; watermelon
-
Generation and analysis of expressed sequence tags from almond (Prunus dulcis Mill.) pistils
作者：Jiang, YQ;Ma, RC
关键词：almond;expressed sequence tags;pistil;Prunus dulcis Mill.
