Nom du corpus

Corpus Systématique Végétale

Titre du document

Low temperature effect on selective fertilization by pollen mixtures of wild and cultivated tomato species

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Low temperature adaptation
  • Lycopersicon
  • Pollen mixtures
  • Selective fertilization
Nom du fichier dans la ressource
Syst_veg6_v2_008096
Auteur(s)
  • D. Zamir 1
  • S. D. Tanksley 1
  • R. A. Jones 1
Affiliation(s)
  • 1) Department of Vegetable Crops, University of California, Davis, California, USA
Résumé

In vitro pollen germination of cultivated tomato, Lycopersicon esculentum Mill., is inhibited by an ambient temperature of 5°C, more so than pollen from a Peruvian ecotype of Lycopersicon hirsutum Humb. & Bonpl. originating from an altitude of 3200 m. The frequency of L. hirsutum gametes contributing to hybrid zygote formation is more than doubled when controlled fertilizations with pollen mixtures of the two species occurs at 12/6°C as compared to crosses with the same mixtures at 24/19°C. The results suggest that differential selection at the gametophytic level occurs in response to low temperature regimes. To our knowledge this is the first time in higher plants that alteration of an environmental factor has been demonstrated to change selection values of male gametophytes in a fashion predicted by the ecology of the parental sporophytes.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - plant biology & botany
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - genetique des eucaryotes. evolution biologique et moleculaire
Catégories Scopus
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Genetics
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Agronomy and Crop Science
  • 1 - Health Sciences ; 2 - Medicine ; 3 - General Medicine
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biotechnology
Catégories WoS
  • 1 - science ; 2 - plant sciences
  • 1 - science ; 2 - horticulture
  • 1 - science ; 2 - genetics & heredity
  • 1 - science ; 2 - agronomy
Identifiant ISTEX
4FA4CC1B676D58CA1D84BBD07F75F3B71A4D5D99
Revue

Theoretical and Applied Genetics

Année de publication
1981
Présence de XML structuré
Non
Score qualité du texte
5.396
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-01C2RL1H-Z
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