Identification of a 5S rDNA spacer type specific to Triticum urartu and wheats containing the T-urartu genome

被引:10
作者
Allaby, RG [1 ]
Brown, TA [1 ]
机构
[1] Univ Manchester, Inst Sci & Technol, Dept Biomol Sci, Manchester M60 1QD, Lancs, England
关键词
5S rDNA; polymerase chain reaction; Triticum; wheat;
D O I
10.1139/gen-43-2-250
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
A PCR system was designed to amplify 5S spacer rDNA specifically from homeologous chromosome 1 in a variety of species representative of the Aegilops and Triticum genera. Two polymerase chain reaction (PCR) primer combinations were used, one of which appears to be apomorphic in nature and specific to chromosome 1A in Triticum urartu and tetraploid and hexaploid wheats containing the AA genome donated by T. urartu. The value of studying single repeat types to investigate the molecular evolution of 5S-rDNA arrays is considered.
引用
收藏
页码:250 / 254
页数:5
相关论文
共 23 条
[21]   CHROMOSOMAL HOMOGENEITY OF DROSOPHILA RIBOSOMAL DNA ARRAYS SUGGESTS INTRACHROMOSOMAL EXCHANGES DRIVE CONCERTED EVOLUTION [J].
SCHLOTTERER, C ;
TAUTZ, D .
CURRENT BIOLOGY, 1994, 4 (09) :777-783
[22]   FREQUENT DUPLICATION AND DELETION EVENTS IN THE 5 S-RNA GENES AND THE ASSOCIATED SPACER REGIONS OF THE TRITICEAE [J].
SCOLES, GJ ;
GILL, BS ;
XIN, ZY ;
CLARKE, BC ;
MCINTYRE, CL ;
CHAPMAN, C ;
APPELS, R .
PLANT SYSTEMATICS AND EVOLUTION, 1988, 160 (1-2) :105-122
[23]   CLUSTAL-W - IMPROVING THE SENSITIVITY OF PROGRESSIVE MULTIPLE SEQUENCE ALIGNMENT THROUGH SEQUENCE WEIGHTING, POSITION-SPECIFIC GAP PENALTIES AND WEIGHT MATRIX CHOICE [J].
THOMPSON, JD ;
HIGGINS, DG ;
GIBSON, TJ .
NUCLEIC ACIDS RESEARCH, 1994, 22 (22) :4673-4680