Evolutionary view on sexual dimorphism and shape variation in Iranian populations of Hypera postica (Coleoptera: Curculionidae)

Sanaei, Ehsan; Seiedy, Marjan; Momtazi, Farzaneh

doi:10.1007/s00435-015-0279-2

Cited by 7 publications

(8 citation statements)

References 46 publications

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“…Hamedan Province (the locality of the Hamedan and Tuyserkan populations) is one of the most important alfalfa-exporting sites that provide the feeding crop for livestock in many provinces of Iran. This huge amount of alfalfa trade could increase gene flow between western populations (Sanaei et al, 2015b(Sanaei et al, , 2015c. The produced alfalfa in Jovein agroindustry companies can cover the needs of alfalfa in the west of Iran.…”

Section: Iranian Population Statusmentioning

confidence: 99%

“…Many of the previous studies on H. postica in Iran focused on pest management in specific regions (Khanjani and Pourmirza, 2004;Moradi-Vajargah et al, 2011, 2013 without respect to population differences and so far life history traits have only been studied for Hamadan populations (Zahiri et al, 2010a(Zahiri et al, , 2010b(Zahiri et al, , 2014. However, very recently, some morphological variation among Iranian populations has been detected (Sanaei et al, 2015b(Sanaei et al, , 2015c). In the current study, the immature life stages of Iranian populations of H. postica were investigated to document population differences.…”

Section: Introductionmentioning

confidence: 99%

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Developmental differences of local populations of alfalfa weevil (Hypera postica) (Coleoptera: Curculionidae)

Sanaei¹,

Seiedy²

2016

Turk J Zool

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Many invasive insect pests show phenotypic variation between local populations across their geographical range. Understanding and integrating such differences will help to improve pest management. Population differences are the result of local adaptation to environmental conditions and may be detected using ecological analyses. Immature stages may represent especially interesting study objects as they represent important stages in the life cycle of insects and in many cases may be the most destructive stage. The alfalfa weevil, Hypera postica (Gyllenhal, 1813), is a variable worldwide pest that heavily damages alfalfa fields and is widely distributed in Iran. The lack of information about Iranian populations of H. postica has motivated us to examine immature life stages of three western populations (Karaj, Hamedan, Tuyserkan) and one eastern population (Jovein) under laboratory conditions. We measured the percentage of survival and the developmental times of each immature stage. The results suggested that the mean duration of the pupa stage significantly differs among the eastern population and all western populations (P < 0.005). Egg survivorship was lower in the eastern population (72.5%). The importance of differences in development times between populations is discussed in regards of pest management strategies.

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Section: Iranian Population Statusmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Developmental differences of local populations of alfalfa weevil (Hypera postica) (Coleoptera: Curculionidae)

Sanaei¹,

Seiedy²

2016

Turk J Zool

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“…Several factors may have contributed to the mitochondrial lineage divergence and diversification in H. postica ; these may include population history, adaptation to different hosts, or disrupted interpopulation gene flow (Iwase, Nakahira, et al, ; Iwase, Tani, et al, ; Sanaei & Seiedy, ; Sanaei, Seiedy, & Momtazi, ; Sanaei et al, ). One additional potentially important agent is the intracellular alpha‐proteobacteria Wolbachia (Hertig, ; Werren, ).…”

Section: Introductionmentioning

confidence: 99%

Global genetic diversity, lineage distribution, and Wolbachia infection of the alfalfa weevil Hypera postica (Coleoptera: Curculionidae)

Sanaei

Husemann

Seiedy

et al. 2019

Ecology and Evolution

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The alfalfa weevil (Hypera postica) is a well‐known example of a worldwide‐distributed pest with high genetic variation. Based on the mitochondrial genes, the alfalfa weevil clusters into two main mitochondrial lineages. However, there is no clear picture of the global diversity and distribution of these lineages; neither the drivers of its diversification are known. However, it appears likely that historic demographic events including founder effects played a role. In addition, Wolbachia, a widespread intracellular parasite/symbiont, likely played an important role in the evolution of the species. Wolbachia infection so far was only detected in the Western lineage of H. postica with no information on the infecting strain, its frequency, and its consequences on the genetic diversity of the host. We here used a combination of mitochondrial and nuclear sequences of the host and sequence information on Wolbachia to document the distribution of strains and the degree of infection. The Eastern lineage has a higher genetic diversity and is found in the Mediterranean, the Middle East, Eastern Europe, and eastern America, whereas the less diverse Western lineage is found in Central Europe and the western America. Both lineages are infected with the same common strain of Wolbachia belonging to Supergroup B. Based on neutrality tests, selection tests, and the current distribution and diversification of Wolbachia in H. postica, we suggested the Wolbachia infection did not shape genetic diversity of the host. The introduced populations in the United States are generally genetically less diverse, which is in line with founder effects.

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“…In ground beetles, geometric morphometrics has been used to help in the identification of cryptic species [35,36], to assess ecomorphological differentiation [34,[37][38][39][40][41], and likewise is an important tool to study the sexual dimorphism [25,31,[42][43][44][45]. In other arthropods, geometric morphometrics is used to understand the shape variability in spiders belonging to urbanized territory [46,47].…”

Section: Introductionmentioning

confidence: 99%

Measuring the Inter and Intraspecific Sexual Shape Dimorphism and Body Shape Variation in Generalist Ground Beetles in Russia

Benítez

Sukhodolskaya

Órdenes-Clavería

et al. 2020

Insects

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Ground beetles in multiple species vary greatly in the expression of the shape on sexual traits, resulting in a sexual shape dimorphism as a consequence of sexual selection differences. The present research focuses on the study of inter and intrasexual sexual shape dimorphism of two generalist genera of ground beetles Pterostichus and Carabus. Geometric morphometric methods were applied to five generalist species of ground beetles Carabus exaratus, C. granulatus, Pterostichus melanarius, P. niger, and P. oblongopunctatus and several multivariate analyses were applied for two different traits, abdomen and elytra. Three of the five species analyzed showed high levels of sex-based shape dimorphism. However, the most generalist species, P. melanarius and P. oblongopunctatus, did not evidence shape-based sexual dimorphism differentiation in both of the analyzed traits, as statistically confirmed based on the permutation of pairwise comparison of the Mahalanobis distances of a sex–species classifier. It is generally known that environmental stress in natural populations can affect the fitness expression, principally related to sexual fecundity, being that this pattern is more evident in non-generalist species. In our results, the contrary pattern was found, with the absence of sexual shape dimorphism for two of the three generalist species analyzed. On the other hand, the interspecies shape variation was clearly identified using principal component analysis of both of the analyzed traits. Finally, this research is the first to analyze the relationship between sexual shape dimorphism in Russian ground beetles, evidencing the lack of understanding of the mechanism underlying the sexual dimorphism, especially in species living in extreme environments.

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Evolutionary view on sexual dimorphism and shape variation in Iranian populations of Hypera postica (Coleoptera: Curculionidae)

Cited by 7 publications

References 46 publications

Developmental differences of local populations of alfalfa weevil (Hypera postica) (Coleoptera: Curculionidae)

Developmental differences of local populations of alfalfa weevil (Hypera postica) (Coleoptera: Curculionidae)

Global genetic diversity, lineage distribution, and Wolbachia infection of the alfalfa weevil Hypera postica (Coleoptera: Curculionidae)

Measuring the Inter and Intraspecific Sexual Shape Dimorphism and Body Shape Variation in Generalist Ground Beetles in Russia

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