Characteristics of the interspecific somatic hybrids Solanum pinnatisectum [plus] S. tuberosum H-8105

• Autorzy: Szczerbakowa A , Boltowicz D. , Lebecka R. , Radomski P. , Wielgat B.
• Języki publikacji: EN

Abstrakty

EN

The morphological, cyto logical and molecular analyses of the plants regenerated after PEG-induced fusion between mesophyll protoplasts from the dihaploid potato clone H-8105 and the wild tuberous disease-resistant species S.pinnatisectum, were performed. A single fusion experiment yielded 313 calli, although only two calli produced shoots. From the rooted shoots, two stable clones (PT-01-1 and PT-01-2) exhibiting different vigor and habitat, were developed. The plants of PT-01-1 clone grew slowly in vitro, produced tubers after transfer to soil but did not set flowers. In contrast, the plants of the vigorous clone PT-01-2 produced both tubers and flowers after transfer to soil. The flower and tuber morphology of PT-01-1 and PT-01-2 regenerants was intermediate in comparison to the parental species. Cyto logical analysis revealed that the PT-01-1 clone was pentaploid and the PT-01-2 clone was tetraploid. The molecular (RAPD) analysis confirmed hybridity of both clones. The preliminary tests on late blight resistance of the hybrids showed no differences with a potato parent.

Słowa kluczowe

EN

ploidy; somatic hybridization; interspecific somatic hybrid; Solanum tuberosum; late blight resistance; potato; Solanum pinnatisectum; plant breeding

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2005
• Tom: 27
• Numer: 3A
• Opis fizyczny: p.265-273,fig.,ref.

Twórcy

autor

Szczerbakowa A

• Polish Academy of Sciences, 5A Pawinskiego St., 02-106 Warsaw, Poland

autor

Boltowicz D.

autor

Lebecka R.

autor

Radomski P.

autor

Wielgat B.

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