caa a22 4500 378916874 CHVBK 20180305123555.0 cr unu---uuuuu 161128e20041201xx s 000 0 eng 10.2298/hel0441001a doi (NATIONALLICENCE)gruyter-10.2298/hel0441001a Jovanka Atlagić Institute of Field and Vegetable Crops, Oilcrops Department, Novi Sad, Serbia and Montenegro, Phone: +381 21 4898 401, Fax: +381 21 413 833 ROLES OF INTERSPECIFIC HYBRIDIZATION AND CYTOGENETIC STUDIES IN SUNFLOWER BREEDING [Elektronische Daten] EL PAPEL DE LA HIBRIDIZACIÓN DE INTERSPECIES E INVESTIGACIONES CITOGENÉTICAS EN LA SELECCIÓN DE GIRASOL / RÔLES DE L'HYBRIDATION INTERSPÉCIFIQUE ET DES ÉTUDES CYTOGÉNÉTIQUES DANS LA CULTURE DU TOURNESOL / [Atlagić Jovanka] The abundance and diversity of species within the genus Helianthus offer numerous and rewarding possibilities to sunflower breeders. All annual species and a large number of perennial species may be crossed to the cultivated sunflower by the conventional hybridization method. On the other side, the divergence and heterogeneity of the genus cause considerable difficulties, such as cross-incompatibility, embryo abortiveness, sterility and reduced fertility in interspecific hybrids. Because of that, methods of somatic hybridization, "invitro” embryo culture, chromosome doubling, etc. are frequently used for interspecific crossing. Cytogenetic studies are used for determinations of chromosome number and structure and analyses of meiosis (microsporogenesis) and pollen viability, making it possible to establish phylogenetic relations between wild sunflower species and the cultivated sunflower and enabling the use of the former in sunflower breeding. Cytogenetic studies of the sunflower have evolved from cytology, through cytotaxonomy and classic cytogenetic to cytogenetic-molecular studies. Most intensive progress of cytogenetic studies has been associated with the use of interspecific hybridization in sunflower breeding. This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. cytogenetic studies nationallicence HELIA De Gruyter 27/41(2004-12-01), 1-24 1018-1806 27:41<1 2004 27 helia https://doi.org/10.2298/hel0441001a text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.2298/hel0441001a text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Jovanka Atlagić Institute of Field and Vegetable Crops, Oilcrops Department, Novi Sad, Serbia and Montenegro, Phone: +381 21 4898 401, Fax: +381 21 413 833 NATIONALLICENCE 773 0- HELIA De Gruyter 27/41(2004-12-01), 1-24 1018-1806 27:41<1 2004 27 helia CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter