Capsicum Cinsi İçerisinde Bazı Beyaz ve Mor Çiçekli Türler Arasında Melezlenebilme İlişkileri Üzerine Bir Araştırma

Yıl 2001, Cilt: 14 Sayı: 1, 101 - 106, 01.06.2001

A. Naci Onus

Öz

Bu çalışmanın ana amacı bazı beyaz ve mor çiçekli Capsicum türleri arasında melezlemeler yaparak ve polen tüpü gelişimini inceleyerek bu iki grup Capsicum türleri arasında melezlenebilme olanaklarını ortaya koymaktır. Araştırma sonuçlarına göre; C. tovarii hariç geriye kalan mor çiçekli türler melezlemede dişi form olarak kullanıldıkları zaman beyaz çiçekli türlerin polenleri inhibe edilip ve hiçbir tohum elde edilemezken, resiprokal melezlemelerde beyaz çiçekli türlerin pistilleri mor çiçekli türlerin, C. tovarii dahil, polenlerini inhibe etmemiş ve melezlemelerin çoğunluğundan tohum elde edilmiştir.

Anahtar Kelimeler

Capsicum, Beyaz Çiçekli Türler, Mor Çiçekli Türler, Melezleme

A Study on Crossability Relationships Between Some of The White- and Purple-Flowered Capsicum Species

Öz

The main objective of this study is to reveal the crossability relations between some of the white-and purple-flowered Capsicum species by making pollination and studying pollen tube growth of crosses conducted between the white-and purple flowered species. Results showed that while there was a strong inhibition of pollen tubes, when a purple-flowered species, excluding C. tovarii, was the female and no F1 hybrid was obtained. On the other hand, in reciprocal crosses pistils of the white-flowered species showed no inhibition of pollen tubes of purple-flowered species, including C. tovarii, and in most of the crosses seeds were obtained.

Anahtar Kelimeler

Capsicum, White-Flowered Species, Purple-Flowered Species, Hybridisation

Kaynakça

• Ballard, R.E. J.W. McClure, W.H. Eshbaugh and K.G. Wilson., 1970. A chemosystematic study of selected taxa of Capsicum. Amer. J. Bot., 57:225-233.
• Bermawie, N., 1990. Isozymic variability and barriers to hybridisation between C. chacoense and two purple-flowered species (C. pubescens and C. tovarii). Ph.D. Thesis, The University of Reading.
• Cook, A.A., 1982. Disease resistance studies and new releases from Florida. Capsicum Newsl. 1: 42, 1982.
• Hunziker, A.T., 1971. Estudos sobre Solanaceae VII. Contribucion al conocimento de Capsicum y generos afines. (Witheringa Acnistus, Athena) tercera parte. Kurtziana 241-259.
• James, J., 1975. Production of hybrids and haploids with Fragaria. Ph.D. Thesis, The University of Reading.
• Koompai, P., 1976. Some barriers to interspecific crossing and gene exchange in five species of Capsicum. M.Phil. Thesis, The University of Reading.
• Martin, F.W., 1959. Staining and observing of the pollen tubes in the style by means of fluorescence. Stain Technol. 34:125-128.
• McLeod, M.J., Gutman, S.I., W.H., Eshbaugh, 1983. Peppers (Capsicum) In: Isozymes in plant genetics and breeding. Eds. Tanksley, S.D., Orton, T.J., part A, pp. 3-13, Elsevier, Amsterdam.
• Nettancourt, D., Devreux, M., Laneri, U. Pacini, E., G., Sarfatti, 1974. Genetical and ultrastructural aspects of self-and cross incompatibility in interspecific hybrids between self-compatible Lycopersicon esculentum and self-incompatible L. peruvianum. Theor. Appl. Genet. 44: 278-288.
• Onus, A.N., 1995. Unilateral incompatibility in Capsicum. Ph.D. Thesis, the University of Reading.
• Pickersgill, B., 1971. Relationships between weedy and cultivated forms in some species of chili peppers (Capsicum). Evolution 25: 683-691.
• Pickersgill, B., 1977. Chromosomes and evolution in Capsicum. In: Capsicum 77. Edited by E. Pochard. I.N.R.A., Montfavet-Avignon, France.
• Smith, P.G., and C.B., Heiser, 1957. Breeding behaviour of cultivated peppers. Proc. Amer. Soc.Hort.Sci. 70:286-290.
• Williams, E.G., Knox, R.B., J.L., Rouse, 1982 Pollination sub-systems distinguished from pollen tube arrest after incompatible interspecific crosses in Ericaceae. J. Cell.Sci. 53: 255-277.
• Zijlstra, S., Purimauhua, C., P., Lindhaut, 1991. Pollen tube growth in interspecific crosses between Capsicum species. Hortscience 26 (5): 585-586.