Hadadian, Mahboobeh, Zamani, Abbas Ali, Marefat, Alireza, Rakhshani, Ehsan (2016). Can morphological analysis reveal the existence of subspecies of Praon exsoletum (Nees, 1811) (Hymenoptera: Braconidae, Aphidiinae) in various geographical regions?. , 2(3), 339-354.
Mahboobeh Hadadian; Abbas Ali Zamani; Alireza Marefat; Ehsan Rakhshani. "Can morphological analysis reveal the existence of subspecies of Praon exsoletum (Nees, 1811) (Hymenoptera: Braconidae, Aphidiinae) in various geographical regions?". , 2, 3, 2016, 339-354.
Hadadian, Mahboobeh, Zamani, Abbas Ali, Marefat, Alireza, Rakhshani, Ehsan (2016). 'Can morphological analysis reveal the existence of subspecies of Praon exsoletum (Nees, 1811) (Hymenoptera: Braconidae, Aphidiinae) in various geographical regions?', , 2(3), pp. 339-354.
Hadadian, Mahboobeh, Zamani, Abbas Ali, Marefat, Alireza, Rakhshani, Ehsan Can morphological analysis reveal the existence of subspecies of Praon exsoletum (Nees, 1811) (Hymenoptera: Braconidae, Aphidiinae) in various geographical regions?. , 2016; 2(3): 339-354.

Can morphological analysis reveal the existence of subspecies of Praon exsoletum (Nees, 1811) (Hymenoptera: Braconidae, Aphidiinae) in various geographical regions?

Journal of Insect Biodiversity and Systematics
Article 4, Volume 2, Issue 3, 2016, Pages 339-354    PDF (2.02 M)
Authors
Mahboobeh Hadadian1; Abbas Ali Zamani* 1; Alireza Marefat1; Ehsan Rakhshani2
1Department of Plant Protection, Campus of Agriculture and Natural Resources, Razi University, Kermanshah, I. R. Iran.
2Department of Plant Protection, College of Agriculture, University of Zabol, Zabol, P.O. Box: 98615-538, I. R. Iran.
Abstract
In this study, 13 different biotypes of Praon exsoletum were investigated based on selected morphological characteristics. This species is specialized parasitoid of Therioaphistrifolii on alfalfa and clover. Traditional morphometric analysis was used to obtain three meristic and 15 continuous characters. The analysis of variance showed that P. exsoletumbiotypes differ in many morphometric traits. Moreover, all biotypes displayed their maximum differences in six morphological characters as follows:(1) number of antennal segments;(2) inter-tentorial/tentorio-ocular distance;(3) length/width of ovipositor sheath;(4) length/width of second flagellar segment; (5)length/width of third flagellar segment and (6) number of longitudinal placodes on second flagellar segment. The discriminant function analysis indicated45.23% of correct assignment of specimens to the a priori designated groups of specimens. The results indicated an overlapping of analyzed biotypes according to selected morphological characters. On the other hand, geometric morphometrics analysis applied on forewings, the size and the shape revealed statistically significant differences. Eleven homologous landmarks were selected. The ANOVA (p < 0.000) and MANOVA (P= 0.000) showed that there were significant differences in size and shape of forewings. Visualization of the distribution of individuals was presented using Principal component analysis and Canonical variate analysis. On whole, the result of this investigation showed that R1 and the radial veins (end of Rs and M) tend to be short. Furthermore, the USAbiotype introduced is positioned near all other analyzed biotypes of P. exsoletum. Among the selected morphological characters, four characters namely (1) length of wing/length of R1; (2) length of wing/length of stigma; (3) length of first/third flagellar segment and (4) width of first/third flagellar segment were first considered for morphometric study in Praon and P. exsoletum species. Our results showed lack of subspecies for P. exsoletum.
Keywords
Geometric morphometrics; landmark; discriminant function analysis
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