MONITORING GENETIC FIDELITY VS SOMACLONAL VARIATION IN NORWAY SPRUCE (PICEA-ABIES) SOMATIC EMBRYOGENESIS BY RAPD ANALYSIS

被引:49
作者
HEINZE, B [1 ]
SCHMIDT, J [1 ]
机构
[1] AUSTRIAN RES CTR,DEPT BIOTECHNOL,A-2444 SEIBERSDORF,AUSTRIA
关键词
PICEA ABIES; GENETIC STABILITY; SOMATIC EMBRYOGENESIS; RAPD;
D O I
10.1007/BF00023965
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Somaclonal variation, which is a welcome source of genetic variation for crop breeding, is unwanted when direct regenerants have to be used in tissue culture mass propagation leg. in many forest trees), or in the regeneration of genetically transformed plants. Random amplified polymorphic DNA (RAPD) was used to analyse somatic embryos and plants regenerated from embryogenic cell lines in Norway spruce, Picea abies (L.) Karst. RAPD facilitated the identification of clones, as material from the same cell lines shared identical patterns of amplified fragments, whereas regenerants from different cell lines were easily distinguishable by their respective patterns. For comparisons with explant donor genotypes, cell lines were initiated from cotyledons. Some of the seedlings that had parts of their cotyledons removed were grown on as control plants. Somatic embryos regenerated from cotyledon cell lines showed no aberrations in RAPD banding patterns with respect to donor plants. We conclude that gross somaclonal variation is absent in our plant regeneration system.
引用
收藏
页码:341 / 345
页数:5
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