Nom du corpus

Corpus Systématique Végétale

Titre du document

Detection of the apomictic mode of reproduction in maize- Tripsacum hybrids using maize RFLP markers

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Diplospory
  • RFLP
  • Bulk-segregant analysis
  • Genome similarity
  • Intergeneric hybrids
  • Zea mays
Nom du fichier dans la ressource
Syst_veg6_v2_001999
Auteur(s)
  • O. Leblanc 1
  • D. Grimanelli 1
  • D. González-de-León 2
  • Y. Savidan 1
Affiliation(s)
  • 1) The French Scientific Research Institute for Development through Cooperation (ORSTOM) and The International Maize and Wheat Improvement Center (CIMMYT), Postal 6-641, 06600, México D. F., Mexico
  • 2) Applied Molecular Genetics Laboratory, CIMMYT, Postal 6-641, 06600, México D. F., Mexico
Résumé

Polyploid plants in the genus Tripsacum, a wild relative of maize, reproduce through gametophytic apomixis of the diplosporous type, an asexual mode of reproduction through seed. Moving gene(s) responsible for the apomictic trait into crop plants would open new areas in plant breeding and agriculture. Efforts to transfer apomixis from Tripsacum into maize at CIMMYT resulted in numerou intergeneric F1 hybrids obtained from various Tripsacum species. A bulk-segregant analysis was carried out to identify molecular markers linked to diplospory in T. dactyloides. This was possible because of numerous genome similarities among related species in the Andropogoneae. On the basis of maize RFLP probes, three restriction fragments co-segregating with diplospory were identified in one maize-Tripsacum dactyloides F1 population that segregated 1∶1 for the mode of reproduction. The markers were also found to be linked in the maize RFLP map, on the distal end of the long arm of chromosome 6. These results support a simple inheritance of diplospory in Tripsacum. Manipulation of the mode of reproduction in maize-Tripsacum backcross generations, and implications for the transfer of apomixis into maize, 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 - psychologie. psychophysiologie
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
E42E845DA1A7ABC26CC0B197DBA58D86E4051331
Revue

Theoretical and Applied Genetics

Année de publication
1995
Présence de XML structuré
Non
Score qualité du texte
9.172
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-086DJ56D-8
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