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ISSR evaluation of genetic stability of Polish tulip cultivars propagated in vitro

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Podwyszynska M., Kuras A., Korbin M.
Biotechnologia
|
2010
|
issue 2
105-114
EN
The aim of the study was an early detection of somaclonal variation (SV) which could occur within the micropropagated plant material. Shoot cultures of the Polish cultivars were used. Five cultivars derived from breeder A and four from breeder B. They were propagated in vitro for one or two years. The molecular markers (inter-simple sequence repeat, ISSR) were utilized for analysis of putative DNA polymorphism between standard plants (propagated traditionally) belonging to tested cultivars and somaclonal variants derived from them. Within the nine studied genotypes, for five of them, the ISSR analysis performed with ten primers did not reveal polymorphism between standard and micropropagated plants. The analysis of the other four cultivars, all derived from breeder B, showed that some of the plants, micropropagated either for one or two years, differed slightly from standard. Basing on ISSR data, the UPGMA dendrogram showing genetic similarity of the analysed plants was generated and clusters grouping cultivars, their standards and micropropagated plants were noted.
2

Evaluation of genetic variation of selected strawberry (Fragaria x ananassa Duch.) cultivars using ISSR technique

100%
Kuras A., Korbin M., Zurawicz E.
Biotechnologia
|
2004
|
issue 2
73-78
EN
Precise evaluation of the parental forms? genetic variation is the base of rational, modern breeding. DNA patterns obtained in ISSR (inter simple sequence repeat) reactions for 24 strawberry cultivars, frequently used in the crossing programme at the Research Institute of Pomology and Floriculture, were analysed. Diversifying genotypes, polymorphic DNA products were observed in reactions with 54 out of 90 tested primers (806-896, #9 UBC). Six primers (811-814, 824, 840) generating 44 polymorphic bands with length from 270 to 2030 bp allowed to diversify all investigated cultivars. The DNA profiles characterising each of genotypes contained 10-19 polymorphic ISSR products.
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