A STUDY OF THE EFFECT OF A HOMOEOLOGOUS PAIRING PROMOTER ON CHROMOSOME-PAIRING IN WHEAT/RYE HYBRIDS USING GENOMIC IN-SITU HYBRIDIZATION

被引:32
作者
KING, IP [1 ]
READER, SM [1 ]
PURDIE, KA [1 ]
ORFORD, SE [1 ]
MILLER, TE [1 ]
机构
[1] JOHN INNES CTR PLANT SCI RES,CAMBRIDGE LAB,NORWICH NR4 7UJ,ENGLAND
关键词
GENOMIC IN SITU HYBRIDIZATION; HOMOEOLOGOUS RECOMBINATION; SECALE CEREALE; TRITICUM AESTIVUM;
D O I
10.1038/hdy.1994.42
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Genomic in situ hybridization was used to study the relative frequency of wheat/wheat and wheat/rye homoeologous chiasma formation in Triticum aestivum cv. Chinese Spring tetrasomic for chromosome 3B x Secale cereale cv. Petkus Spring hybrids. In addition to wheat/wheat and wheat/rye homoeologous chiasma formation, pairing between apparently non-homologous rye chromosomes was also observed. The implications of the results obtained for the introgression of rye chromatin into wheat is discussed.
引用
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页码:318 / 321
页数:4
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