GENETIC DUPLICATION IN FUSARIUM-OXYSPORUM

被引：28

作者：

KISTLER, HC ^{[1
]}

BENNY, U ^{[1
]}

BOEHM, EWA ^{[1
]}

KATAN, T ^{[1
]}

机构：

[1] AGR RES ORG,VOLCANI CTR,IL-50250 BET DAGAN,ISRAEL

来源：

CURRENT GENETICS | 1995年 / 28卷 / 02期

关键词：

CHROMOSOME; ELECTROPHORETIC KARYOTYPE; FILAMENTOUS FUNGUS; PLANT PATHOGEN;

D O I：

10.1007/BF00315784

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Genomic clones hybridizing to anonymous, single-copy sequences were used to probe chromosomesized DNAs of Fusarium oxysporum f. sp. cubense separated by pulsed-field gel electrophoresis. As expected, most clones hybridized to single chromosome bands. However, two of eight ''single-copy'' clones hybridized to two chromosomes in some, but not all, of 14 isolates examined. This observation suggests a degree of genetic duplication in the fungus and is consistent with recent electrophoretic karyotype analysis indicating that intraspecific differences in genome size and chromosome number may be explained, at least in part, by persistent genetic duplication.

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页码：173 / 176

页数：4

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