scholarly journals Population genetic structure and approximate B ayesian computation analyses reveal the southern origin and northward dispersal of the oriental fruit moth G rapholita molesta ( L epidoptera: T ortricidae) in its native range

2015 ◽  
Vol 24 (16) ◽  
pp. 4094-4111 ◽  
Author(s):  
Shu‐Jun Wei ◽  
Li‐Jun Cao ◽  
Ya‐Jun Gong ◽  
Bao‐Cai Shi ◽  
Su Wang ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Oriental Fruit Moth ◽  
Native Range

scholarly journals Bird migratory flyways influence the phylogeography of the invasive brine shrimp Artemia franciscana in its native American range

2013 ◽  
Author(s):  
Joaquín Muñoz ◽  
Francisco Amat ◽  
Andy J Green ◽  
Jordi Figuerola ◽  
Africa Gómez
Keyword(s):  
Gene Flow ◽  
Genetic Structure ◽  
Population Genetic Structure ◽  
Brine Shrimp ◽  
Population Genetic ◽  
Geographic Distance ◽  
Artemia Franciscana ◽  
Large Set ◽  
Native Range ◽  
Mantel Tests

Since Darwin’s time, waterbirds have been considered an important vector for the dispersal of continental aquatic invertebrates. Bird movements have facilitated the worldwide invasion of the American brine shrimp Artemia franciscana, transporting cysts (diapausing eggs), and favouring rapid range expansions from introduction sites. Here we address the impact of bird migratory flyways on the population genetic structure and phylogeography of A. franciscana in its native range in the Americas. We examined the sequence variation for two mitochondrial gene fragments (COI and 16S for a subset of the data) in a large set of population samples representing the entire native range of A. franciscana. Furthermore, we performed Mantel tests and redundancy analyses (RDA) to test the role of flyways, geography and human introductions on the phylogeography and population genetic structure at a continental scale. A. franciscanamitochondrial DNA was very diverse, with two main clades, largely corresponding to Pacific and Atlantic populations, mirroring American bird flyways. There was a high degree of regional endemism, with populations subdivided into at least 12 divergent, geographically restricted and largely allopatric mitochondrial lineages, and high levels of population structure ( Φ ST of 0.92), indicating low ongoing gene flow. We found evidence of human-mediated introductions in nine out of 39 populations analysed. Once these populations were removed, Mantel tests revealed a strong association between genetic variation and geographic distance (i.e., isolation-by-distance pattern). RDA showed that shared bird flyways explained around 20% of the variance in genetic distance between populations and this was highly significant, once geographic distance was controlled for. The variance explained increased to 30% when the factor human introduction was included in the model. Our findings suggest that bird-mediated transport of brine shrimp propagules does not result in substantial ongoing gene flow; instead, it had a significant historical role on the current species phylogeography, facilitating the colonisation of new aquatic environments as they become available along their main migratory flyways.

Population genetic structure of economically important Tortricidae (Lepidoptera) in South Africa: a comparative analysis

2009 ◽  
Vol 100 (4) ◽  
pp. 421-431 ◽  
Author(s):  
A.E. Timm ◽  
H. Geertsema ◽  
L. Warnich
Keyword(s):  
South Africa ◽  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Codling Moth ◽  
Population History ◽  
Oriental Fruit Moth ◽  
Dispersal Ability ◽  
Aflp Analysis ◽  
Genetic Structures

AbstractComparative studies of the population genetic structures of agricultural pests can elucidate the factors by which their population levels are affected, which is useful for designing pest management programs. This approach was used to provide insight into the six Tortricidae of major economic importance in South Africa. The population genetic structure of the carnation wormE. acerbellaand the false codling mothT. leucotreta, analyzed using amplified fragment length polymorphism (AFLP) analysis, is presented here for the first time. These results were compared with those obtained previously for the codling mothCydia pomonella, the oriental fruit mothGrapholita molesta, the litchi mothCryptophlebia peltasticaand the macadamia nut borerT. batrachopa. Locally adapted populations were detected over local geographic areas for all species. No significant differences were found among population genetic structures as result of population history (whether native or introduced) although host range (whether oligophagous or polyphagous) had a small but significant effect. It is concluded that factors such as dispersal ability and agricultural practices have the most important effects on genetically structuring populations of the economically important Tortricidae in South Africa.

scholarly journals Genetic Diversity of a Rising Invasive Pest in the Native Range: Population Genetic Structure of Aromia bungii (Coleoptera: Cerambycidae) in South Korea

Diversity ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 582
Author(s):  
Seunghyun Lee ◽  
Deokjea Cha ◽  
Yongwoo Nam ◽  
Jonkook Jung
Keyword(s):  
Genetic Structure ◽  
South Korea ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Genetic Data ◽  
Invasive Pest ◽  
Native Range ◽  
Cytochrome Oxidase Subunit ◽  
Longhorn Beetle ◽  
Coi Sequences

The red-necked longhorn beetle (RLB; Aromia bungii [Faldermann, 1835]) is an emerging invasive pest. From its native range of East Asia, it invaded Europe and Japan in the early 2010s. Despite its increasing importance, the molecular resources of RLB are scarce, and its invasive dynamics are largely unknown. In the present study, we carried out the first analysis of its population genetic structure in South Korea, which is part of its native range, using 1248 bp cytochrome oxidase subunit I (COI) sequences of 199 individuals from 18 localities. We found that in South Korea, RLB has a moderate population genetic structure and can be divided into three geographical subgroups: central, southeastern, and southwestern subgroup. Comparative analyses with two Chinese, one German, and ten Italian RLB sequences yielded non-significant results because of largely missing genetic data from other native areas. Nevertheless, as it provided the first population genetic data for this invasive alien species (IAS) whose range is increasing, our research is a crucial molecular resource for future invasive dynamics research.

Population genetic structure and delineation of conservation units in European larch (Larix decidua Mill.) across its native range

Flora ◽  
2018 ◽  
Vol 246-247 ◽  
pp. 26-32 ◽  
Author(s):  
Jiří Dostálek ◽  
Tomáš Frantík ◽  
Markéta Pospíšková ◽  
Miroslava Křížová
Keyword(s):  
Genetic Structure ◽  
Population Genetic Structure ◽  
Population Genetic ◽  
Larix Decidua ◽  
Native Range ◽  
European Larch ◽  
Conservation Units

scholarly journals Bird migratory flyways influence the phylogeography of the invasive brine shrimp Artemia franciscana in its native American range

2013 ◽  
Author(s):  
Joaquín Muñoz ◽  
Francisco Amat ◽  
Andy J Green ◽  
Jordi Figuerola ◽  
Africa Gómez
Keyword(s):  
Gene Flow ◽  
Genetic Structure ◽  
Population Genetic Structure ◽  
Brine Shrimp ◽  
Population Genetic ◽  
Geographic Distance ◽  
Artemia Franciscana ◽  
Large Set ◽  
Native Range ◽  
Mantel Tests

Since Darwin’s time, waterbirds have been considered an important vector for the dispersal of continental aquatic invertebrates. Bird movements have facilitated the worldwide invasion of the American brine shrimp Artemia franciscana, transporting cysts (diapausing eggs), and favouring rapid range expansions from introduction sites. Here we address the impact of bird migratory flyways on the population genetic structure and phylogeography of A. franciscana in its native range in the Americas. We examined the sequence variation for two mitochondrial gene fragments (COI and 16S for a subset of the data) in a large set of population samples representing the entire native range of A. franciscana. Furthermore, we performed Mantel tests and redundancy analyses (RDA) to test the role of flyways, geography and human introductions on the phylogeography and population genetic structure at a continental scale. A. franciscanamitochondrial DNA was very diverse, with two main clades, largely corresponding to Pacific and Atlantic populations, mirroring American bird flyways. There was a high degree of regional endemism, with populations subdivided into at least 12 divergent, geographically restricted and largely allopatric mitochondrial lineages, and high levels of population structure ( Φ ST of 0.92), indicating low ongoing gene flow. We found evidence of human-mediated introductions in nine out of 39 populations analysed. Once these populations were removed, Mantel tests revealed a strong association between genetic variation and geographic distance (i.e., isolation-by-distance pattern). RDA showed that shared bird flyways explained around 20% of the variance in genetic distance between populations and this was highly significant, once geographic distance was controlled for. The variance explained increased to 30% when the factor human introduction was included in the model. Our findings suggest that bird-mediated transport of brine shrimp propagules does not result in substantial ongoing gene flow; instead, it had a significant historical role on the current species phylogeography, facilitating the colonisation of new aquatic environments as they become available along their main migratory flyways.

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