Nom du corpus

Corpus Systématique Végétale

Titre du document

The significance of genic balance to endosperm development in interspecific crosses

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Endosperm
  • Evolution
  • Interspecific crosses
  • Solanums
  • 2n gametes
Nom du fichier dans la ressource
Syst_veg6_v2_011625
Auteur(s)
  • S. A. Johnston 1,2
  • T. P. M. den Nijs 1,2,3
  • S. J. Peloquin 1,2
  • R. E. Hanneman Jr. 1,2
Affiliation(s)
  • 1) Departments of Genetics and Horticulture, University of Wisconsin, Madison, Wisconsin
  • 2) Science and Education Administration, Agricultural Research, USDA, USA
  • 3) I.V.T., P.O. Box 16, Wageningen, the Netherlands
Résumé

The endosperm has played a significant role in the evolution of angiosperms because of its physiological and genetic relationships to the embryo. One manifestation of this evolutionary role is its abnormal development in interploidy crosses. It is now established that the endosperm develops abnormally in interploidy-intraspecific crosses when the maternal: paternal genome ratio deviates from 2∶1 in the endosperm itself. We propose an Endosperm Balance Number (EBN) hypothesis to explain endosperm development in both interploidy-intraspecific and interspecific crosses. Each species is assigned an EBN on the basis of its crossing behavior to a standard species. It is the EBN which determines the effective ploidy in the endosperm of each species, and it is the EBNs which must be in a 2∶1, maternal:paternal ratio. The EBN of a species may be determined by a few genes rather than the whole genome. This hypothesis brings most intraspecific-interploidy and interspecific crossing data under a single concept with respect to endosperm function. The implications of this hypothesis to isolating mechanisms, 2n gametes, the evolution of disomic polyploids, and reciprocal differences in seed development are discussed.

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
CEDBDC8A8DA49E1CC74139BA04AABFEA7DBEB9B9
Revue

Theoretical and Applied Genetics

Année de publication
1980
Présence de XML structuré
Non
Score qualité du texte
7.443
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-026MFK7D-V
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