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Titre du document / Document title

Xenia effects in maize with normal endosperm : I. Importance and stability

Auteur(s) / Author(s)

BULANT C. (1) ; GALLAIS A. (1 2) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Station de Génétique Végétale, Ferme de Moulon, 91190 Gif/Yvette, FRANCE
(2) Institut National Agronomique de Paris-Grignon, 16 rue Claude Bernard, 75231 Paris, FRANCE

Résumé / Abstract

Xenia is the effect of pollen on the development and characteristics of the fruits. To reexplore its importance and consequences for grain production in maize (Zea mays L.), the effect of pollen genotype on kernel weight was studied with five white kernel lines as females and several yellow kernel lines as males in a factorial (5 × 20) and in a diallel (5 × 5) mating design. White single-cross hybrids were also used as females. Cross-fertilization advantage was studied in 1993, 1994, and 1995 by mixing pollen from a male and pollen from a female (i.e., autopollen). When inbred lines were used as females the average increase in kernel weight at maturity, because of cross fertilization, was 13% in 1993, 11% in 1994, and 11.5% in 1995. Female effects were the strongest; however, male and female × male interaction effects were also significant although at the limit of significance because of large environmental variation. These effects were also significant for white kernels, showing that there was a stimulation effect on the filling of kernels from self fertilization by the more active filling of kernels from cross fertilization. With single-cross females, cross-fertilization advantage was about halved. Despite genotype × year interaction, the phenomenon seems sufficiently repeatable with significant correlation among years. Results are interpreted as an early manifestation of heterosis which increases sink strength of kernels from cross fertilization.

Revue / Journal Title

Crop science    ISSN  0011-183X   CODEN CRPSAY 

Source / Source

1998, vol. 38, no6, pp. 1517-1525 (31 ref.)

Langue / Language

Anglais

Editeur / Publisher

Crop Science Society of America, Madison, WI, ETATS-UNIS  (1961) (Revue)

Mots-clés anglais / English Keywords

Endosperm

;

Pollen

;

Development

;

Fruit

;

Yield component

;

Stability

;

Inbreeding

;

Fecundation

;

Heterosis

;

Zea mays

;

Xenia

;

Cross pollination

;

Gramineae

;

Monocotyledones

;

Angiospermae

;

Spermatophyta

;

Cereal crop

;

Genetic determinism

;

Pollination

;

Mots-clés français / French Keywords

Albumen

;

Pollen

;

Développement

;

Fruit

;

Composante rendement

;

Stabilité

;

Endogamie

;

Fécondation

;

Hétérosis

;

Zea mays

;

Xénie

;

Pollinisation croisée

;

Gramineae

;

Monocotyledones

;

Angiospermae

;

Spermatophyta

;

Plante céréalière

;

Déterminisme génétique

;

Pollinisation

;

Mots-clés espagnols / Spanish Keywords

Albumen

;

Polen

;

Desarrollo

;

Fruto

;

Componente rendimiento

;

Estabilidad

;

Endogamia

;

Fecundación

;

Heterosis

;

Zea mays

;

Xenia

;

Polinización cruzada

;

Gramineae

;

Monocotyledones

;

Angiospermae

;

Spermatophyta

;

Planta cerealista

;

Determinismo genético

;

Polinización

;

Localisation / Location

INIST-CNRS, Cote INIST : 1533, 35400007319958.0190

Nº notice refdoc (ud4) : 1631906



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