Phylogenetic relationships of the land snail; Eobania vermiculata (Müller, 1774) from Egypt and Saudi Arabia. A combined morphological and molecular analysis

Desouky, Mahmoud M.A.; Busais, Salem M.

doi:10.1016/j.jobaz.2012.07.009

Cited by 15 publications

(16 citation statements)

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“…accurately identified P. acuta from populations sampled in Angola, Burundi and South Africa with the phylogenetic analyses clustering the African snails with reference sequences of other P. acuta form across the globe. This was further confirmed by the p-distance comparisons and the ABGD analyses which illustrated that the African P. acuta did not have a divergence any greater that 3% relative to any other of the P. acuta isolates, well within the typical for species level divergence in pulmonate snails (Desouky and Busais, 2012;Elejalde et al, 2008;Lawton et al, 2015). Collado (2017) noted that different P. acuta populations tend to be described as distinct taxa because of environmental specific morphological plasticity in distinct snail populations.…”

Section: Discussionmentioning

confidence: 62%

DNA barcoding of the medically important freshwater snail Physa acuta reveals multiple invasion events into Africa

et al. 2018

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The medically important freshwater snail Physa acuta is highly invasive and has been reported in several freshwater environments across Africa. To identify species and provide initial insights into the origins of P. acuta into African freshwater environments standard molecular barcoding analyses, using the mitochondrial cytochrome c oxidase subunit I gene (COI), was performed on P. acuta isolates from Angola, Burundi and South Africa. Phylogenetic analyses of isolates from Africa could not be distinguished from P. acuta populations from other countries. Comparisons of COI sequences between isolates of P. acuta showed there to be no geographically specific clusters and the African isolates were distributed across four distinct unrelated clades suggesting several independent invasion events. Haplotype analyses indicated that there were a high number of haplotypes with low variation between them, which led to significant differences in AMOVA analyses between countries. This was further evidence of multiple invasion events suggesting multiple novel haplotypes being continually and independently introduced to each country. This approach not only provides initial insight into the invasion of Africa by P. acuta but a molecular method to monitor and manage the use of an agent of biological control.

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Section: Discussionmentioning

confidence: 62%

DNA barcoding of the medically important freshwater snail Physa acuta reveals multiple invasion events into Africa

et al. 2018

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“…This is also supported by high levels of divergence in the cox1 with R. labiata and R. peregra at 12.12% and also between R. labiata and R. balthica 10.33%. This is considerably higher than the typical 5% divergence in mitochondrial genes between mollusc species as illustrated in studies on Eobania species (Desouky and Busais, 2012), Iberus species (Elejalde et al, 2008), and Rhagada species (Johnson et al, 2013) However, reference sequences of R. balthica and R. peregra clustered together in both cox1…”

Section: Molecular Phylogenetics For Identifyingmentioning

confidence: 77%

Unravelling the riddle of Radix: DNA barcoding for species identification of freshwater snail intermediate hosts of zoonotic digeneans and estimating their inter-population evolutionary relationships

Lawton

Lim

Dukes

et al. 2015

Infection, Genetics and Evolution

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Please cite this article as: Lawton, S.P., Lim, R.M., Dukes, J.P., Kett, S.M., Cook, R.T., Walker, A.J., Kirk, R.S., Unravelling the riddle of Radix: DNA barcoding for species identification of freshwater snail intermediate hosts of zoonotic digeneans and estimating their inter-population evolutionary relationships, Infection, Genetics and Evolution (2015), doi: http://dx.doi.org/10. 1016/j.meegid.2015.07.021 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. and ITS2 sequences, identified populations of Radix auricularia and R. balthica from specimens originally morphologically identified as R. peregra from the UK. Assessment of cox1 and ITS2 as species identification markers showed that, although both markers differentiated species, cox1 possessed greater molecular diversity and higher phylogenetic resolution. Cox1 also proved useful for gaining insights into the evolutionary relationships of Radix species populations. Phylogenetic analysis and haplotype networks of cox1 indicated that Radix auricularia appeared to have invaded the UK several times; some haplotypes forming a distinct UK specific clade, whilst others are more akin to those found on mainlandEurope. This was in contrast to relationships between R. balthica populations, which had low molecular diversity and no distinct UK specific haplotypes, suggesting recent and multiple invasions from mainland Europe. Molecular techniques therefore appear to be crucial for distinguishing Radix spp., particularly using cox1. This barcoding marker also enables the population biology of Radix spp. to be explored, and is invaluable for monitoring the epidemiology of fluke diseases especially in the light of emerging diseases and food security.

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“…Significant variations in quantitative shell characters within or between species were often detected in family Cyclophoridae (Lee et al, 2012;Nantarat et al, 2014b) and gastropods (Kameda et al, 2007;Desouky & Busais, 2012;Hirano et al, 2014). From the phylogenetic signal test, only shell height produced a significant signal.…”

Section: Discussionmentioning

confidence: 99%

Land snails of Leptopoma Pfeiffer, 1847 in Sabah, Northern Borneo (Caenogastropoda: Cyclophoridae): an analysis of molecular phylogeny and variations in shell form due to geography

Phung

Heng

Liew

2017

Preprint

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Leptopoma is a species rich genus with approximately 100 species documented according to shell morphology and animal anatomy. Many of the Leptopoma species are described in terms of shell size, shape, sculpture and colour patterns of a small number of examined materials. However, the implications of the inter-and intra-species variations in shell form to the taxonomy of Leptopoma species and the congruency of its current shell based taxonomy with its molecular phylogeny are still unclear. Over the last decade, more than 900 collection lots consisting of more than 4000 Leptopoma specimens have been obtained in Sabah and deposited in BORNEENSIS at Universiti Malaysia Sabah. Access to this collection gave us the opportunity to examine the geographical variations in shell forms and the phylogenetic relationship of Leptopoma species in Sabah. The phylogenetic relationship of three Leptopoma species was first estimated by performing maximum likelihood and Bayesian analysis based on mitochondrial genes (16S and COI) and nuclear gene (ITS-1). After this, a total of six quantitative shell characters (i.e. shell height, shell width, aperture height, aperture width, shell spire height, and ratio of shell height and width) and three qualitative shell characters (i.e. shell colour patterns, spiral ridges, and dark ring band in aperture) of the specimens were mapped across the phylogenetic tree two Leptopoma species, these also pointed to intra-species differences between populations from different locations. This study provides an initiation to resolve the taxonomy conundrum for the remaining 100 little known Leptopoma species from other regions and highlights a need to assess variations in shell characters before they could be used in species classification. 8 Abstract. Leptopoma is a species rich genus with approximately 100 species documented 9 according to shell morphology and animal anatomy. Many of the Leptopoma species are described 10 in terms of shell size, shape, sculpture and colour patterns of a small number of examined 11 materials. However, the implications of the inter-and intra-species variations in shell form to the 12 taxonomy of Leptopoma species and the congruency of its current shell based taxonomy with its 13 molecular phylogeny are still unclear. Over the last decade, more than 900 collection lots 14 consisting of more than 4000 Leptopoma specimens have been obtained in Sabah and deposited in 15 BORNEENSIS at Universiti Malaysia Sabah. Access to this collection gave us the opportunity to 16 examine the geographical variations in shell forms and the phylogenetic relationship of Leptopoma 17 species in Sabah. The phylogenetic relationship of three Leptopoma species was first estimated by 18 performing maximum likelihood and Bayesian analysis based on mitochondrial genes (16S and 19 COI) and nuclear gene (ITS-1). After this, a total of six quantitative shell characters (i.e. shell 20 height, shell width, aperture height, aperture width, shell spire height, and ratio of shell height and 21 width) and three...

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Phylogenetic relationships of the land snail; Eobania vermiculata (Müller, 1774) from Egypt and Saudi Arabia. A combined morphological and molecular analysis

Cited by 15 publications

References 37 publications

DNA barcoding of the medically important freshwater snail Physa acuta reveals multiple invasion events into Africa

DNA barcoding of the medically important freshwater snail Physa acuta reveals multiple invasion events into Africa

Unravelling the riddle of Radix: DNA barcoding for species identification of freshwater snail intermediate hosts of zoonotic digeneans and estimating their inter-population evolutionary relationships

Land snails of Leptopoma Pfeiffer, 1847 in Sabah, Northern Borneo (Caenogastropoda: Cyclophoridae): an analysis of molecular phylogeny and variations in shell form due to geography

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