چكيده فارسي :
تعيين وضعيت نژاد زنبور عسل اولين مرحلۀ برنامه ريزي اصولي جهت اصلاح نژاد زنبور عسل مي باشد. اغلب زيرگونه هاي زنبورعسل معمولي بر اساس خصوصيات ظاهري طبقه بندي مي شوند بنابراين شكل ظاهري نقش مهمي در گروه بندي جمعيت هاي مختلف دارند. به منظور مقايسه مرفومتريك خصوصيات مهم ظاهري زنبورعسل نژاد ايراني Apis mellifera meda Skorikov در استان كردستان، نمونه برداري در ماه‌هاي ارديبهشت، خرداد و تير سال 1391 از 10 منطقه شامل سنندج، دهگلان، قروه، ديواندره، سقز، مريوان، سروآباد، بانه، بيجار و كامياران انجام گرفت. در اين آزمايش از 10 صفت ظاهري جهت تفكيك جمعيت هاي زنبورعسل 10 منطقه استفاده گرديد. نتايج نشان داد كه جمعيت زنبورهاي عسل نمونه‌برداري شده از منطقه دهگلان با ارتفاع 1938/5 متر از سطح دريا (´5 º35 شمالي و ´36 º47 شرقي)، بلندترين طول بال (9/15 ميلي‌متر)، پاي عقب (7/82 ميلي‌متر) و خرطوم (6/35 ميلي‌متر) را به خود اختصاص داد. هم‌بستگي صفات نيز مورد بررسي قرار گرفت و بين صفات طول بال جلو و عرض بال جلو راست (0/001> pو 0/76 =r2)، طول بال جلو و طول خرطوم 0/001 >p و 0/21 =r2) و همچنين طول خرطوم و طول پاي عقب (0/001 >p و 0/27 =r2) هم‌بستگي وجود داشت. تابع تشخيص به ميزان 63/33 درصد جمعيت 10 منطقه را ازيكديگر متمايزنمود.
چكيده لاتين :
Background and Objectives
Nowadays, the first stage of breeding is determination of honeybee races. Honey bees (Apis mellifera) include 24 different subspecies. The most subspecies of A. mellifera have been classified according to morphological characteristics; thus morphological characteristics have an important role in the classification of honey bees. Morphometric comparison of important morphological characteristics of Iranian honeybee, Apis mellifera meda Skorikov, was determined in Kurdistan province. Sampling was conducted from Sanandaj, Dehgolan, Ghorveh, Divandareh, Saghez, Marivan, saravabad, baneh, Bijar and Kamyaran in 2013. Ten morphological characteristics were used for discriminating the population of honeybees. Results showed that honeybee population of Dehgolan area (altitude 1938.5 m, 35º 5´ 47º 36´) had the longest front wing (9.156 mm), hind leg (7.826 mm) and proboscis (6.356 mm). Correlations between morphological characteristics were evaluated. There was a correlation between characteristics of length and width of the right forewing (r2 =0.76, p <0.001), length of the forewing and proboscis (r2 =0.21, p <0.001) and lengths of proboscis and hind leg (r2 =0.27, p <0.001). Results indicated that Discriminant Function Analysis (DFA) differentiated 63.33 % of ten populations.
Material and Methods
Samples were collected in 2013. Worker honeybees were preserved in pomple solution. Morphological characteristics including forewing and hind wing lengths, A4, D7, G18, cubital index, proboscis length, hind leg length, third and fourth abdominal segment lengths dorsally and Index of abdominal segment dorsally were measured. The data was analyzed by MANOVA. Dendrogram was drawn by UPGMA method.
Results
Results showed that samples of Dehgolan, Divandareh and Sarvabad were discriminated from other populations. Analyses of cluster of ten morphological characteristics segregated ten sampled populations to four groups. In addition, Dehgolan area had the longest front wing (9.156 mm), hind leg (7.826 mm) and proboscis (6.356 mm) lengths. Comparisons of samples demonstrated that honey bee subspecies was A.m.meda.
Discussion
A. mellifera subspecies contain different ecotypes, so they can be used as important sources in breeding. Honeybee subspecies of A.m.meda is native of Iran. This subspecies is distributed in different geographical areas of Iran. Unfortunately, some beekeepers import exotic subspecies such as A.m.carnica illegally. Imports of these subspecies have caused to create hybrid subspecies. Indigenous populations of honeybees are considered as genetic resources and much effort should be made to preserve these populations.
