Population structure and speciation in the dragonfly Sympetrum striolatum/nigrescens (Odonata: Libellulidae): An analysis using AFLP markers

Parkes, K.A.; Amos, William; Moore, N. W.; Hoffman, Joseph I.; Moore, Janet

doi:10.14411/eje.2009.021

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…In many cases, molecular results have supported classical morphological work, but there are cases where unexpected novelty emerges (Parkes et al, 2009).…”

Section: Discussionmentioning

confidence: 78%

Genetic diversity, population structure and taxonomy of Calopteryx splendens (Odonata: Calopterygidae): An AFLP analysis

Sadeghi¹,

Kyndt²,

Dumont³

2010

Eur. J. Entomol.

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Abstract. Calopteryx splendens is a widely distributed palaearctic damselfly with a remarkably uniform morphology. Variation in the size and shape of the pigmented spot on the wing is the main diagnostic character used to discriminate subspecies across its huge geographic range. Here, AFLP analysis was used to assess the genetic structure and diversity of nine populations representing 3 putative subspecies and evaluate the pigment spot as a taxonomic marker. Genetic diversity was high, with the number of polymorphic loci per population ranging from 141 to 280 out of a total of 333 variable sites (42.3-84.1%) and Nei's gene diversity from 0.160 to 0.283 (overall 0.299). Overall population genetic differentiation (FST = 0.2766) suggests limited gene flow and adaptation to local environments. Restricted gene flow and genetic differentiation among populations are supported by significant FST estimates. High levels of gene flow (Nm >1) were only recorded among three Asian populations (Russia -Kazakhstan -Turkey). The patterns of genotypic diversity suggest that a given wing spot size and shape may arise from the hybridization of a limited number, possibly not more than four, ancestral gene pools in different ways and at different times. Clearly, the sample analyzed was not sufficient to capture all of the complex history of C. splendens, but sufficient to indicate the taxa ancilla, waterstoni, and orientalis possibly represent three of the four ancestral gene pools, and originated in western Asia. The origin of the fourth, xanthostoma, is the western Mediterranean.

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“…In many cases, molecular results have supported classical morphological work, but there are cases where unexpected novelty emerges (Parkes et al, 2009).…”

Section: Discussionmentioning

confidence: 78%

Genetic diversity, population structure and taxonomy of Calopteryx splendens (Odonata: Calopterygidae): An AFLP analysis

Sadeghi¹,

Kyndt²,

Dumont³

2010

Eur. J. Entomol.

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“…Sympetrum striolatum (Libellulidae) S. striolatum is a palearctic dragonfly [28] that is found in Europe and other areas in the Mediterranean [29], with bodies of salt-water likely serving as a major barrier to gene flow within this species [30]. A demographic model of S. striolatum, generated from a reference assembly of an individual from Wytham Woods, Oxfordshire, UK [31] estimated a relative stable effective population size around 1 million individuals throughout most of the past 10 million years (which may predate the divergence times of this species), with declines to an effective population size of around 100,000 occurring in the last 100,000 years [32].…”

Section: Pachydiplax Longipennis (Libellulidae)mentioning

confidence: 99%

Newly Sequenced Genomes Reveal Patterns of Gene Family Expansion in select Dragonflies (Odonata: Anisoptera)

Tolman,

Beatty,

Frandsen

et al. 2023

Preprint

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As in many other lineages, the dragonflies, or anisoptera (Insecta: Odonata), contain a myriad of life history and diversification patterns. Two families within anisoptera highlight the diversity of patterns in this sub-order. As the most recently derived anisopteran family, some species of Libellulidae typically live fewer than two years (although generation times vary across the group), and some clades are thought to be tolerant of poor water quality. The family comprises 1500 known species. In contrast, an earlier diverging family of anisoptera, the Petaluridae, live longer than five years, and are some of the only semi-terrestrial dragonflies. Petaluridae contains only 11 extant species, all of which specialize in fen habitats. Here we sequence the genomes of two dragonflies, the petalurid,Uropetala carovei, and the libellulid,Pachydiplax longipennis. By comparing these genomes to previously published genomes of Petaluridae and Libellulidae we identify potential biological functions related to significantly expanding gene families in both lineages. Notably, the Libellulidae have significant expansions of gene families related to the maintenance of homeostasis and gene expression, which we hypothesize could play a role in the ability of the Libellulidae to thrive in low-quality water bodies. The Petaluridae have significantly expanded gene families related to perception of taste and negative regulation of apoptosis, which can plausibly be tied to their semi-terrestrial lifestyle and longevity. Additionally, we demonstrate that Odonata have relatively high rates of gene turnover, and that the difference in gene turnover between Libellulidae and Petaluridae are comparable.SignificanceThis work is the first major analysis of the evolution of gene families in the order Odonata, providing future directions for research in this order, and filling in a major taxonomic gap. Furthermore, this is the first work to tie genomic traits to life history and evolutionary patterns in Odonata. The patterns of gene family evolution identified, and the traits they are linked to, will be of broad interest to evolutionary biologists.

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“…It has been historically observed in southern Europe and the Mediterranean (Borkenstein & Jödicke, 2022). An analysis of amplified fragment length polymorphism (ALFP) markers comparing genetic signatures from different individuals concluded that salt water barriers inhibit intra-species breeding within S. striolatum populations, leading to decreased genetic diversity (Parkes et al, 2009). This finding raised concerns regarding rising sea levels that could represent barriers to gene flow of this species.…”

Section: Sympetrum Striolatummentioning

confidence: 99%

Changes in effective population size of Odonata in response to climate change revealed through genomics

Tolman,

Bruchim,

Driever

et al. 2023

IJO

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The advent of third generation sequencing technologies has led to a boom of high-quality, chromosome level genome assemblies of Odonata, but to date, these have not been widely used to estimate the demographic history of the sequenced species through time. Yet, an understanding of how lineages have responded to past changes in the climate is useful in predicting their response to current and future changes in the climate. Here, we utilized the pairwise sequential markovian coalescent (PSMC) to estimate the demographic histories of Sympetrum striolatum, Ischnura elegans, and Hetaerina americana, three Odonata for which chromosome-length genome assemblies are available. Ischnura elegans showed a sharp decline in effective population size around the onset of the Pleistocene ice ages, while both S. striolatum and H. americana showed more recent declines. All three species have had relatively stable population sizes over the last one hundred thousand years. Although it is important to remain cautious when determining the conservation status of species, the coalescent models did not show any reason for major concern in any of the three species tested. The model for I. elegans confirmed prior research suggesting that population sizes of I. elegans will increase as temperatures rise.

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Population structure and speciation in the dragonfly Sympetrum striolatum/nigrescens (Odonata: Libellulidae): An analysis using AFLP markers

Cited by 6 publications

References 8 publications

Genetic diversity, population structure and taxonomy of Calopteryx splendens (Odonata: Calopterygidae): An AFLP analysis

Genetic diversity, population structure and taxonomy of Calopteryx splendens (Odonata: Calopterygidae): An AFLP analysis

Newly Sequenced Genomes Reveal Patterns of Gene Family Expansion in select Dragonflies (Odonata: Anisoptera)

Changes in effective population size of Odonata in response to climate change revealed through genomics

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