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A recessive gene conferring ethylene insensitivity and androecy in Cucurbita pepo National Institute of Agronomic Research
Manzano, S.; Dominguez, V.J.; Garrido, D.; Gómez, P.; Jamilena, M..
The genetic and physiological analysis performed in the ‘Vegetable spaghetti’ (Veg) inbred line of Cucurbita pepo subsp. pepo has indicated that its androecious phenotype is determined by a single recessive gene conferring ethylene insensitivity. The production of female flowers in the androecious line starts much later than in normal varieties, and is lower than 30 %, with some of the plants producing less than 5 % female flowers. The androecious trait segregates as a single recessive gene in F2 generation, and cosegregates with a weak ethylene insensitive phenotype in seedlings. In fact, etiolated seedlings of the ‘Veg’ line and the most androecious plants in the F2 generation produce more ethylene than the contrasting line, but are less sensitive to...
Tipo: Poster Palavras-chave: Inheritance; Ethylene production; Sex expression; Cucurbita pepo; Androecy.
Ano: 2008 URL: http://hdl.handle.net/2174/280
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