Segregation ratios of leaf colour and lethality in golden-leaved Pelargonium x hortorum Bailey

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027073%3A_____%2F09%3A%230000617" target="_blank" >RIV/00027073:_____/09:#0000617 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Segregation ratios of leaf colour and lethality in golden-leaved Pelargonium x hortorum Bailey
Original language description
The aim of our study was to test segregation ratios in golden-leaved pelargoniums, particularly from the aspect of the production of golden-leaved hybrid varieties propagated by seeds. The golden colour of leaves in Pelargonium x hortorum is controlled by the nuclear gene aurea with incomplete dominance. Golden-leaved types may exist only as heterozygotes (Aur+/Aur) while the light yellow homozygous constitution (Aur/Aur) is lethal. When heterozygous golden-leaved and homozygous green-leaved ((Aur+/Aur+) lines were crossed, only three golden-leaved lines (from the five tested) had progenies with segregation ratios consistent with expected segregation ratio 1:1. But also in these consistent progenies was, in the most cases, the class of golden-leaved heterozygotes reduced (reduction by 7-8%). Two hybrid combinations had segregation ratios significantly different (reduction of golden-leaved herozygotes by 15% and 43%).
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GE - Plant cultivation
OECD FORD branch
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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