Sex text palm

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In the date palm, a dioecious mode separate male and female individuals and the late initial reproductive age 5—10 years are major practical constraints for genetic improvement. Early selection on young seedlings could enhance breeding programmes and generate experimental male and female genetic stocks, but no cytogenetic protocol exists for sex determination in an immature date palm.

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Here we describe a cytological method based on chromomycin staining which demonstrates the occurrence of sexual chromosomes carrying distinctive nucleolar heterochromatin and thus offers, for the first time, the possibility of identifying male and female individuals by simple analysis of root meristems. This observation has been extended by in situ rDNA hybridization, confocal microscopy and dual-label flow cytometry of nuclei. This is a preview of subscription content, access via your institution.

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Rent this article via DeepDyve. Anonymous Annuaire FAO de la production, vol Date Palm J 5: — Google Scholar. Beal JM Cytological studies in the genus Phoenix. Bot Gaz — Article Google Scholar. Euphytica 23— In: Physiologie des arbres et des arbustes en zones arides et semi-arides. Libbey Eurotext, Paris, pp — Durand R, Durand B Sexual differentiation in higher plants.

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Physiol Plant — Cambridge University Press, pp — Geber G, Schweizer D Cytochemical heterochromatin differentiation in Sinapis alba Cruciferae using a simple airdrying technique for producing chromosome spre. Plant Syst Evol 97— Nucleic Acids Res 7: — PubMed Google Scholar. Cytometry — Article PubMed Google Scholar. Louvet J, Toutain G Recherche sur les fusarioses. Ann Phytopathol 5: 35— Biol Cell 41— J Cell Sci 19— Heredity — Negrutiu I, Sala F Sexual development in plants: an open question of strategic importance.

Plant Sci 1—6. Nixon RW Immediate influence of pollen in determining the size and time of ripening of the fruit of the date palm. J Hered — Date Growers Inst Rep 6— Hereditas — Oudejans JH Date palm. In: Simmonds NW ed Evolution of crop plants. Longman, London, pp — Plant Sci 79— Sarkar S Sex chromosome in Palm. Genet Iber 9: — Chromosoma — Sinoto Y Chromosome studies in some dioecious plants, with special reference to the allosomes. Cytologia 1: — Microsc Acta — Suganuma H Enzymatic determination of the sex of dioecious Sex text palm at the seedling stage.

Tomlinson PB The structural biology of palms. Clarendon Press, Oxford, UK. Westergaard M The mechanism of sex determination in dioecious flowering plants. Adv Genet 9: — Download references. You can also search for this author in PubMed Google Scholar.

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Reprints and Permissions. Siljak-Yakovlev, S. Chromosomal sex determination and heterochromatin structure in date palm. Sexual Plant Reprod 9, — Download citation.

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Received : 20 November Accepted : 26 December Issue Date : May Search SpringerLink Search. Abstract In the date palm, a dioecious mode separate male and female individuals and the late initial reproductive age 5—10 years are major practical constraints for genetic improvement.

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Immediate online access to all issues from Subscription will auto renew annually. Cambridge University Press, pp — Geber G, Schweizer D Cytochemical heterochromatin differentiation in Sinapis alba Cruciferae using a simple airdrying technique for producing chromosome spre.

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Plant Sci 1—6 Article Google Scholar Nixon RW Immediate influence of pollen in determining the size and time of ripening of the fruit of the date palm. Chromosoma — Article PubMed Google Scholar Sinoto Y Chromosome studies in some dioecious plants, with special reference to the allosomes. Microsc Acta — Google Scholar Suganuma H Enzymatic determination of the sex of dioecious plants at the seedling stage.

Siljak-Yakovlev, M. Coba de la Pena Authors S. Siljak-Yakovlev View author publications. View author publications. Rights and permissions Reprints and Permissions. About this article Cite this article Siljak-Yakovlev, S.

Sex text palm

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Chromosomal sex determination and heterochromatin structure in date palm