Morfološka varijabilnost maslinine muhe (Bactrocera oleae (Rossi, 1790))

master's thesis

• Title (english): Morphological variability of the olive fruit fly (Bactrocera oleae (Rossi, 1790))
• Author: Barbara Vrček
• Mentor: Ivana Pajač Živković (mentor)
• Committee member: Ivana Pajač Živković (predsjednik povjerenstva)
• Committee member: Darija Lemić (član povjerenstva)
• Committee member: Kristina Batelja Lodeta (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Agricultural Zoology); Zagreb
• Defense date and country: 2024-09-19, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Maslinina muha najopasniji je štetnik ploda masline. Napad maslinine muhe smanjuje kvalitetu i urod masline te posljedično i kakvoću maslinovog ulja. U Republici Hrvatskoj se uz domaće, uzgajaju i udomaćene sorte masline koje su različito osjetljive na napad ovog štetnika. Cilj rada bio je utvrditi morfološku varijabilnost populacija maslinine muhe metodom geometrijske morfometrije na krilima jedinki štetnika prikupljenih s domaćih i udomaćenih sorata masline u primorskim uzgojnim područjima u Republici Hrvatskoj. U maslinicima na području Istre (Vodnjan) i sjeverne Dalmacije (Benkovac) skupljeni su plodovi različitih sorata masline (domaćih – 'Oblica' i 'Istarska bjelica' te udomaćenih – 'Ascolana tenera', 'Frantoio', 'Leccino' i 'Pendolino'). Uzorci maslinine muhe skupljeni su iz prikupljenih plodova masline. Ukupno su prikupljene 664 jedinke maslinine muhe, kojima su uklonjena i preparirana krila prema standardnom postupku. Preparati krila su zatim fotografirani, a na fotografije krila postavljeno je 20 jedinstvenih točaka na sjecištima i krajevima ţila u svrhu provođenja geometrijsko morfometrijskih analiza. Primjenom standardnih analiza geometrijske morfometrije na krilima maslinine muhe utvrđene su značajne razlike u obliku krila između ženki i mužjaka analiziranih populacija čime je spolni dimorfizam vrste jasno dokazan. Nadalje, utvrđene su značajne razlike u obliku krila maslinine muhe između različitih sorata masline. Rezultati ovog istraživanja potvrđuju kako su analize geometrijske morfometrije krila prikladne za identifikaciju specifičnih fenotipova štetnika koji se uspješno razmnoţava i širi u različitim sortama masline.

Abstract (english)

The olive fly is the most dangerous pest of the olive fruit. Infestation with the olive fly reduces the quality and yield of the olives and thus also the quality of the olive oil. In the Republic of Croatia, domesticated olive varieties are grown alongside native olives, which can be infested by this pest to varying degrees. The aim of the work was to determine the morphological variability of olive fly populations using the method of geometric morphometrics on the wings of pests collected on native and domesticated olive varieties in coastal cultivation areas in the Republic of Croatia. In olive groves in Istria (Vodnjan) and northern Dalmatia (Benkovac), the fruits of different olive varieties (indigenous – 'Oblica' and 'Istarska bjelica' - and domesticated – 'Ascolana tenera', 'Frantoio', 'Leccino' and 'Pendolino') were collected. The olive fly samples were taken from collected olive fruits. A total of 664 olive fly individuals were collected and their wings were removed and slide-mounted according to the standard procedure. The wings were then photographed, and 20 landmarks at the intersections and ends of the veins were digitized on each image to perform geometric morphometric analyzes. When standard geometric morphometric analyzes were applied to the wings of the olive fly, significant differences in the shape of the wings were found between the females and males of the populations studied, clearly demonstrating the sexual dimorphism of the species. In addition, significant differences in the shape of the wings of the olive fly were found between different olive varieties. The results of this study confirm that the analysis of the geometric morphometry of the wings is suitable to identify specific phenotypes of a pest that successfully reproduces and spreads in different olive cultivars.

• Keywords: maslinina muha; sorte masline; varijabilnost oblika krila; geometrijska morfometrija
• Keywords (english): olive fruit fly; olive cultivars; wing shape variability; geometric morphometry
• Language: croatian
• URN:NBN: urn:nbn:hr:204:589368
• Study programme: Title: Phytomedicine; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka fitomedicine (magistar/ magistra inženjer/inženjerka fitomedicine)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to authenticated users
• Created on: 2024-10-01 07:17:26