Analysis of diversity among wild gladiolus (Gladiolus sp.) accessions using morphological traits
Paper Details
Analysis of diversity among wild gladiolus (Gladiolus sp.) accessions using morphological traits
Abstract
In Tunisia, the local germplasm of wild Gladiolus have been currently damaged by severe genetic erosion, pollution, urbanization and bad farming practices. The aim of the present study was to prospect, collect and assess morphologically 15 accessions of this species from several areas in Tunisia. The identification and characterization of 300 individuals (20 samples per each accession), was performed utilizing 20 morphological traits. In this study, morphological traits showed a large variability for wild Gladiolus species. Cluster analysis revealed two major clusters: the first includes the accessions with populations of Gladiolus italicus, the second consists of all the rest, the populations with seeds wing. The Principal Component Analysis of the measured morphological characters revealed that the 3 primary components included 70.5% of total variability. The diversity is currently threatened by genetic erosion. The sustainability of Gladiolus in Tunisia is necessary using a rapid program of conservation in situ and ex situ.
Allen GA, Antos JA, Worley AC, Suttill TA, Hebda RJ. 1996. Morphological and genetic variation in disjunct populations of the avalanche lily Erythronium montanum. Canadian Journal of Botany 74: 403–412.
Ascough GD, Erwin JE, Van Staden J. 2009. Micropropagation of Iridaceae — a review. Plant Cell, Tissue and Organ Culture 97, 1–19.
Ascough GD, Swart PA, Finnie JF, Van Staden J. 2011. Micropropagation of Romulea minutiflora, Sisyrinchium laxum and Tritonia gladiolaris— Iridaceae with ornamental potential. South African Journal of Botany 77, 216–221.
Bock B. 2012. Nomenclature of the Flora of France by BDNFF v4.02 http://www.tela-botanica.org
Ben Radhia H. 2005. Adaptation to the ornamental horticulture spontaneous gladiolus (Gladiolus segetum Ker Gaul.) in Tunisia. Master of Science, National Agronomic Institute of Tunisia, 65 p.
Cohat J. 1993. Gladiolus. In. A. Dehertog and M. Le Nard (eds). The physiology of flower bulbs. Elsevier, msterdam: 297-320.
Cohat J. 1988. Estimate the heritability of some traits in gladioli (Gladiolus grandiflorus Hort.). Agronomie 8(3), 179-185.
Cuénod A. 1954. Flora of Tunisia, 235-236.
Ellis JR. 1997. A Guide to Species Irises: Their Identification and Cultivation. British Iris Soc., Cambridge University Press, New York, 8.
Endler JA. 1977. Geographic variation, speciation, and clines. Princeton, New Jersey: Princeton University Press Jan 1, Science 246.
Goldblatt P, Takei M. 1997. Ann. Mo. Bot. Gard., 84, 285-304.
Grant V. 1981. Plant speciation. New York: Columbia University Press.
Halevy AH. 1985. Gladiolus. In: Halevy A.H. (ed). Handbook of flowring, Vol III. CRC Press, Boca Raton, Florida, 63 – 70.
Cantor M, Buta E, Cristia G. 2010. Improvement of Gladiolus Varietal Collection in order to Use as Genitors in Breeding Work. Bulletin UASVM Horticulture 67(1), 318-323.
Lopez J, Sanchez-Gomez P, Fernandez AJ, Fikri Benbrahim S. 2003. Adaptation to various ornamental and naturalized wild species of the genus Gladiolus. Horticultural journal, 37-40 p.
Matoussi Othmeni D. 2007. Micropropagation of spontaneous gladiolus in ornamental interest. Master of Science, National Agronomic Institute of Tunisia, 71 p.
Passioura JA, Ash JE. 1993. Phenotypic, genetic and ecological variation in the Eucalyptus saligna–E. botryoides complex. Australian Journal of Botany 41, 393–412.
Poittier- Alapetite G. 1954. Analytical and synoptic flora of Tunisia, vascular cryptogams, gymnosperms and monocotyledons. Ed.S.E.F.A.N, 235 p.
Pragya P, Bhat KV, Misra RL, Ranjan JK. 2010. Analysis of diversity and relationships among Gladiolus cultivars using morphological and RAPD markers. Indian Journal of Agricultural Sciences 80 (9), 767–772,
Rodriguez A, Catedral LO. 2003. Colima (Tigridieae:Iridaceae), A new genus from western Mexico and a new species:Colima tuitensis from Jalisco. Acta Bot Mexicana 65, 51-60.
Sandquist DR, Ehleringer JR. 1998. Intraspecific variation of drought adaptation in brittlebush: leaf pubescence and timing of leaf loss vary with rainfall. Oecologia 113, 162–169.
Raycheva T, Stoyanov K, Denev. 2011. Genetic diversity and molecular taxonomy study of three genera from Iridaceae family in the Bulgarian flora based on ISSR markers. Botanica Serbica 35 (1), 55-59,
Wilson SD. 1991. Plasticity, morphology and distribution in 12 lakeshore plants. Oikos 62, 292– 298.
El chaieb Emna, Haouala Faouzi , 2015. Analysis of diversity among wild gladiolus (Gladiolus sp.) accessions using morphological traits. Int. J. Agron. Agric. Res., 6(1), 54-62.
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