Quantitative assessment of the morphogenetic efficiency in strawberry Fragaria × ananassa Duch

Abstract

A quantitative assessment of the morphogenetic capability of strawberry was performed. In the experiment, three genotypes of strawberry Fragaria × ananassa Duch. were tested, including two cultivars: ‘Plena’ and ‘Kent’, and one breeding clone no. „394‟. Morphogenetic efficiency was expressed by the mean number of microplants produced by the explant of progeny combinations F1 in two subsequent subcultures. Progeny F1 was obtained after crossings, which were carried out according to Griffing's method 3, with the use of the parental genotypes given above. Quantitative parameters: combining ability and the effect of reciprocal crosses estimated in the progeny F1 allowed to assess the genetic control of the analysed feature. The high positive effect of reciprocal crosses showed that in „Plena‟ the morphogenetic capability is genetically controlled mainly by nuclear genes. On the other hand, aspects of extranuclear inheritance of the analysed trait were observed in ‘Kent’, which proved a weak explant ability of the progeny combination F1 to produce microplants. This resulted in the high negative effect of reciprocal crosses for that cultivar

Heritability of Fruit Quality in the Progenies of Day-Neutral and Short Day Hybrid Strawberry Cultivars

“…Cytoplasmic effects inherited through mother of DNKW001 were allegedly involved in determination of firmness. Similar case was found by Zebrowska and Dyduch (2009) in morphogenetic capability. The means of genetic advance of crossing that involved DN cultivars were bigger than 'DNKW001' when 'DNKW002' was used as parent.…”

Genetic control of in vitro morphogenesis in wild strawberry (Fragaria vesca)

“…Many factors have a significant impact on plants’ regeneration capacity in vitro. Among them, the primary explant genotype, explant source, donor plant condition, external conditions in the growth chamber and culture medium composition (Li, Ding, Hu, Lu, & Guo, ; Żebrowska & Dyduch, ) are of the greatest importance. The process of in vitro morphogenesis is best known and described in cereals.…”

“…In this study, the role of nuclear and cytoplasmic genes in a genetic determination of in vitro morphogenetic potential of cells in the chosen cultivars of the genus Fragaria vesca was investigated. Previous studies, outside own research (Żebrowska & Dyduch, ; Żebrowska & Pacek, ), have not considered the role of extranuclear DNA in the inheritance of this trait in species of the genus Fragaria; hence, the conducted research is an attempt to fill this gap in identifying the genetic determinants of in vitro morphogenesis.…”