scholarly journals Molecular Biogeography of Tribe Thermopsideae (Leguminosae): A Madrean-Tethyan Disjunction Pattern with an African Origin of Core Genistoides

2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Ming-Li Zhang ◽  
Jian-Feng Huang ◽  
Stewart C. Sanderson ◽  
Ping Yan ◽  
Yu-Hu Wu ◽  
...  
Keyword(s):  
North America ◽  
East Asia ◽  
Central Asia ◽  
Sequence Data ◽  
Distribution Patterns ◽  
Molecular Dating ◽  
Biogeographical Distribution ◽  
Central Asian ◽  
Xizang Plateau ◽  
Molecular Biogeography

Thermopsideae has 45 species and exhibits a series of interesting biogeographical distribution patterns, such as Madrean-Tethyan disjunction and East Asia-North America disjunction, with a center of endemism in the Qinghai-Xizang Plateau (QTP) and Central Asia. Phylogenetic analysis in this paper employed maximum likelihood using ITS,rps16,psbA-trnH, andtrnL-F sequence data; biogeographical approaches included BEAST molecular dating and Bayesian dispersal and vicariance analysis (S-DIVA). The results indicate that the core genistoides most likely originated in Africa during the Eocene to Oligocene, ca. 55-30 Ma, and dispersed eastward to Central Asia at ca. 33.47 Ma. The origin of Thermopsideae is inferred as Central Asian and dated to ca. 28.81 Ma.Ammopiptanthusis revealed to be a relic. Birth of the ancestor of Thermopsideae coincided with shrinkage of the Paratethys Sea at ca. 30 Ma in the Oligocene. The Himalayan motion of QTP uplift of ca. 20 Ma most likely drove the diversification between Central Asia and North America. Divergences in East Asia, Central Asia, the Mediterranean, and so forth, within Eurasia, except forAmmopiptanthus, are shown to be dispersals from the QTP. The onset of adaptive radiation at the center of the tribe, with diversification of most species inThermopsisandPiptanthusat ca. 4-0.85 Ma in Tibet and adjacent regions, seems to have resulted from intense northern QTP uplift during the latter Miocene to Pleistocene.

scholarly journals Plastome Phylogenomic and Biogeographical Study on Thuja (Cupressaceae)

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Kole F. Adelalu ◽  
Xu Zhang ◽  
Xiaojian Qu ◽  
Jacob B. Landis ◽  
Jun Shen ◽  
...  
Keyword(s):  
North America ◽  
East Asia ◽  
Potential Effect ◽  
Molecular Dating ◽  
Disjunct Distribution ◽  
Land Bridge ◽  
Biogeographic History ◽  
Extant Species ◽  
History Of ◽  
Phylogenomic Analyses

Investigating the biogeographical disjunction of East Asian and North American flora is key to understanding the formation and dynamics of biodiversity in the Northern Hemisphere. The small Cupressaceae genus Thuja, comprising five species, exhibits a typical disjunct distribution in East Asia and North America. Owing to obscure relationships, the biogeographical history of the genus remains controversial. Here, complete plastomes were employed to investigate the plastome evolution, phylogenetic relationships, and biogeographic history of Thuja. All plastomes of Thuja share the same gene content arranged in the same order. The loss of an IR was evident in all Thuja plastomes, and the B-arrangement as previously recognized was detected. Phylogenomic analyses resolved two sister pairs, T. standishii-T. koraiensis and T. occidentalis-T. sutchuenensis, with T. plicata sister to T. occidentalis-T. sutchuenensis. Molecular dating and biogeographic results suggest the diversification of Thuja occurred in the Middle Miocene, and the ancestral area of extant species was located in northern East Asia. Incorporating the fossil record, we inferred that Thuja likely originated from the high-latitude areas of North America in the Paleocene with a second diversification center in northern East Asia. The current geographical distribution of Thuja was likely shaped by dispersal events attributed to the Bering Land Bridge in the Miocene and subsequent vicariance events accompanying climate cooling. The potential effect of extinction may have profound influence on the biogeographical history of Thuja.

Species composition of the Late Cretaceous eutherian mammal Paranyctoides Fox

2013 ◽  
Vol 50 (7) ◽  
pp. 693-700 ◽  
Author(s):  
Marisol Montellano-Ballesteros ◽  
Richard C. Fox ◽  
Craig S. Scott
Keyword(s):  
North America ◽  
Species Composition ◽  
Central Asia ◽  
Late Cretaceous ◽  
Geographic Range ◽  
Eutherian Mammal ◽  
The Past ◽  
Central Asian ◽  
Dinosaur Park Formation ◽  
Eutherian Evolution

Although the known record of Mesozoic eutherian mammals has been significantly enriched in recent years, early eutherian evolution is still not well understood. Among the more controversial of Mesozoic eutherians is Paranyctoides Fox, which was described in 1979 from the Judithian Dinosaur Park Formation, Alberta, Canada. It is a rare taxon and therefore has been identified in only a few other North American Late Cretaceous local faunas since. Within the past decade, dental and gnathic remains discovered in Central Asia have also been referred to Paranyctoides, thereby expanding the geographic range of the genus substantially and making it the only Late Cretaceous eutherian ostensibly occurring in both continents. As a result of our detailed study of Paranyctoides, however, we find that the Central Asian species lack the diagnostic characters of Paranyctoides and must be referred to other taxa. We conclude that this genus was limited to North America, ranging from Aquilan to Lancian time, and accordingly we recognize as valid only the following species: Paranyctoides sternbergi (Judithian, Alberta), P. maleficus (Aquilan, Alberta), Paranyctoides Wahweap sp. A and sp. B (Judithian, Utah), Paranyctoides Kaiparowits sp. A and sp. B (Judithian, Utah). Another purported species of Paranyctoides, P. megakeros, from the Lancian of Wyoming, is a junior synonym of Alostera saskatchewanensis.

scholarly journals Nephila clavata L. Koch, the Joro Spider of East Asia, newly recorded from North America (Araneae: Nephilidae)

2014 ◽  
Author(s):  
E. Richard Hoebeke ◽  
Wesley Huffmaster ◽  
Byron J Freeman
Keyword(s):  
North America ◽  
East Asia ◽  
Native Species ◽  
Genomic Sequence ◽  
Sequence Data ◽  
Coi Gene ◽  
Background Information ◽  
Invasion History ◽  
Nephila Clavipes ◽  
Species Identity

Nephila clavata L. Koch, known as the Joro spider and native to East Asia (Japan, China, Korea, and Taiwan), is newly reported from North America. Specimens from several locations in northeast Georgia were collected from around residential properties in Barrow, Jackson, and Madison counties in late October and early November 2014. These are the first confirmed records of the species in the New World. Our collections, along with confirmed images provided by private citizens, suggest the Joro spider is established in northeast Georgia. Genomic sequence data for the COI gene obtained from two specimens conforms to published sequences for N. clavata, providing additional confirmation of species identity. Known collection records are listed and mapped using geocoding. Our observations are summarized along with published background information on biology in Asia and we hypothesize on the invasion history and mode of introduction into North America. Recognition features are given and photographic images of the male and female are provided to aid in their differentiation from the one native species of the genus (Nephila clavipes) in North America.

Teuvoa, a new lichen genus inMegasporaceae(Ascomycota:Pertusariales), includingTeuvoa junipericolasp. nov.

2013 ◽  
Vol 45 (3) ◽  
pp. 347-360 ◽  
Author(s):  
Mohammad SOHRABI ◽  
Steven D. LEAVITT ◽  
Víctor J. RICO ◽  
Mehmet G. HALICI ◽  
Gajendra SHRESTHA ◽  
...  
Keyword(s):  
North America ◽  
Central Asia ◽  
New Genus ◽  
Sequence Data ◽  
Morphological Characters ◽  
Sister Relationship ◽  
New Synonyms ◽  
Nuclear Its ◽  
Relationship Of ◽  
The Relationship

AbstractThe relationship ofAspicilia uxoriswithinMegasporaceaeis assessed within a phylogenetic context. ‘Aspicilia’uxorisand other related species are recovered as sister to the genusLobothallias. str. and described here as a new genus.Teuvoa(Ascomycota,Megasporaceae) is erected based on nuclear ITS and LSU sequence data and morphological characters. In addition toTeuvoa uxoris, a second species,T. junipericola,is added to the new genus based on material collected from North America.Teuvoa junipericola, T. uxorisandT. tibeticaform a group with 8-spored asci, absence of extrolites, rather short-sized conidia and ascospores, lack of a subhypothecial algal layer, and different substratum preferences (on organic substratum) with a sister relationship to genusLobothallias. lat. (AspiciliasubgenusPachyothalliaClauzade & C. Roux). Based on spore measurements of the holotypes,Lecanora ferganensisTomin from central Asia (Kyrgyzstan, Tajikistan and Uzbekistan),Lecanora atrodiscataGintovt, from Tajikistan andLecanora takyroidesDzhur. from Turkmenistan are new synonyms toT. uxoris. A lectotype forLecanora ferganensisis designated, expanding the known distribution ofT. uxorisfrom Algeria, Morocco and Spain, into Central Asia.

scholarly journals What caused the cool summer over northern Central Asia, East Asia and central North America during 2009?

2012 ◽  
Vol 7 (4) ◽  
pp. 044015 ◽  
Author(s):  
Kyung-Ja Ha ◽  
Jung-Eun Chu ◽  
June-Yi Lee ◽  
Bin Wang ◽  
Saji N Hameed ◽  
...  
Keyword(s):  
North America ◽  
East Asia ◽  
Central Asia ◽  
Cool Summer

scholarly journals Whole-genome sequencing of 128 camels across Asia reveals origin and migration of domestic Bactrian camels

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Liang Ming ◽  
Liyun Yuan ◽  
Li Yi ◽  
Guohui Ding ◽  
Surong Hasi ◽  
...  
Keyword(s):  
East Asia ◽  
Whole Genome Sequencing ◽  
Central Asia ◽  
Genome Sequencing ◽  
Whole Genome ◽  
Asian Origin ◽  
Central Asian ◽  
Study Support ◽  
Bactrian Camels ◽  
And Migration

AbstractThe domestic Bactrian camels were treated as one of the principal means of locomotion between the eastern and western cultures in history. However, whether they originated from East Asia or Central Asia remains elusive. To address this question, we perform whole-genome sequencing of 128 camels across Asia. The extant wild and domestic Bactrian camels show remarkable genetic divergence, as they were split from dromedaries. The wild Bactrian camels also contribute little to the ancestry of domestic ones, although they share close habitat in East Asia. Interestingly, among the domestic Bactrian camels, those from Iran exhibit the largest genetic distance and the earliest split from all others in the phylogeny, despite evident admixture between domestic Bactrian camels and dromedaries living in Central Asia. Taken together, our study support the Central Asian origin of domestic Bactrian camels, which were then immigrated eastward to Mongolia where native wild Bactrian camels inhabit.

scholarly journals Nephila clavata L. Koch, the Joro Spider of East Asia, newly recorded from North America (Araneae: Nephilidae)

2014 ◽  
Author(s):  
E. Richard Hoebeke ◽  
Wesley Huffmaster ◽  
Byron J Freeman
Keyword(s):  
North America ◽  
East Asia ◽  
Native Species ◽  
Genomic Sequence ◽  
Sequence Data ◽  
Coi Gene ◽  
Background Information ◽  
Invasion History ◽  
Nephila Clavipes ◽  
Species Identity

Nephila clavata L. Koch, known as the Joro spider and native to East Asia (Japan, China, Korea, and Taiwan), is newly reported from North America. Specimens from several locations in northeast Georgia were collected from around residential properties in Barrow, Jackson, and Madison counties in late October and early November 2014. These are the first confirmed records of the species in the New World. Our collections, along with confirmed images provided by private citizens, suggest the Joro spider is established in northeast Georgia. Genomic sequence data for the COI gene obtained from two specimens conforms to published sequences for N. clavata, providing additional confirmation of species identity. Known collection records are listed and mapped using geocoding. Our observations are summarized along with published background information on biology in Asia and we hypothesize on the invasion history and mode of introduction into North America. Recognition features are given and photographic images of the male and female are provided to aid in their differentiation from the one native species of the genus (Nephila clavipes) in North America.

scholarly journals Nephila clavata L. Koch, the Joro Spider of East Asia, newly recorded from North America (Araneae: Nephilidae)

2014 ◽  
Author(s):  
E. Richard Hoebeke ◽  
Wesley Huffmaster ◽  
Byron J Freeman
Keyword(s):  
North America ◽  
East Asia ◽  
Native Species ◽  
Genomic Sequence ◽  
Sequence Data ◽  
Coi Gene ◽  
Background Information ◽  
Invasion History ◽  
Nephila Clavipes ◽  
Species Identity

Nephila clavata L. Koch, known as the Joro spider and native to East Asia (Japan, China, Korea, and Taiwan), is newly reported from North America. Specimens from several locations in northeast Georgia were collected from around residential properties in Barrow, Jackson, and Madison counties in late October and early November 2014. These are the first confirmed records of the species in the New World. Our collections, along with confirmed images provided by private citizens, suggest the Joro spider is established in northeast Georgia. Genomic sequence data for the COI gene obtained from two specimens conforms to published sequences for N. clavata, providing additional confirmation of species identity. Known collection records are listed and mapped using geocoding. Our observations are summarized along with published background information on biology in Asia and we hypothesize on the invasion history and mode of introduction into North America. Recognition features are given and photographic images of the male and female are provided to aid in their differentiation from the one native species of the genus (Nephila clavipes) in North America.

scholarly journals Phylogeography of the desert scorpion Mesobuthus mongolicus illuminates a route out of Central Asia and Junggar Basin as a corridor for faunal exchange between Central and East Asia

2021 ◽  
Author(s):  
Cheng-Min Shi ◽  
Xue-Shu Zhang ◽  
Lin Liu ◽  
De-Xing Zhang
Keyword(s):  
East Asia ◽  
Central Asia ◽  
Climate Changes ◽  
Ecological Niche Modeling ◽  
Mitochondrial Gene ◽  
Biological Evolution ◽  
Population Expansion ◽  
Junggar Basin ◽  
Molecular Dating ◽  
Ancestral Population

A comprehensive understanding of the ecological, evolutionary and genetic consequences of climate changes requires integration of information from different geographic regions and ecosystems. However, a clear knowledge gap exists in arid biota of Asian drylands, where climate change and biological evolution demonstrate high regional specificity. We report here our phylogeographic study on the desert scorpion Mesobuthus mongolicus, attempting to narrow the gap. Range wide samples for one mitochondrial gene and three nuclear loci were subjected to phylogenetic inferences, molecular dating, Bayesian phylogeographic and demographic reconstructions, and population genetic analyses. Ecological niche modeling was employed to generate models of potential distribution range at present and during the last glacial maximum (LGM). Our results revealed that M. mongolicus represents a single coherent lineage that diverged with its most closely related lineage from Central Asia about 1.36 Ma and underwent radiation ever since. Bayesian phylogeographic reconstruction suggested the ancestral population of M. mongolicus dispersed gradually eastward through the Junngar Basin to the Gobi region during the late Pleistocene, strengthening the view that the Junggar Basin has constituted an important corridor for faunal exchange between Central Asian and East Asia. We found that the desert scorpion underwent demographic expansion while experiencing range contraction during the LGM. Development of sandy deserts in northwest China incurred by Eurasian aridification might have opened up substantial empty niches that sustained population expansion during the LGM. Our results suggested that organisms' ecological adaptations have acted as an important determinant for their phylogeographic and demographic responses to past climate changes.

scholarly journals Nephila clavata L. Koch, the Joro Spider of East Asia, newly recorded from North America (Araneae: Nephilidae)

2014 ◽  
Author(s):  
E. Richard Hoebeke ◽  
Wesley Huffmaster ◽  
Byron J Freeman
Keyword(s):  
North America ◽  
East Asia ◽  
Native Species ◽  
Genomic Sequence ◽  
Sequence Data ◽  
Coi Gene ◽  
Background Information ◽  
Invasion History ◽  
Nephila Clavipes ◽  
Species Identity

Nephila clavata L. Koch, known as the Joro spider and native to East Asia (Japan, China, Korea, and Taiwan), is newly reported from North America. Specimens from several locations in northeast Georgia were collected from around residential properties in Barrow, Jackson, and Madison counties in late October and early November 2014. These are the first confirmed records of the species in the New World. Our collections, along with confirmed images provided by private citizens, suggest the Joro spider is established in northeast Georgia. Genomic sequence data for the COI gene obtained from two specimens conforms to published sequences for N. clavata, providing additional confirmation of species identity. Known collection records are listed and mapped using geocoding. Our observations are summarized along with published background information on biology in Asia and we hypothesize on the invasion history and mode of introduction into North America. Recognition features are given and photographic images of the male and female are provided to aid in their differentiation from the one native species of the genus (Nephila clavipes) in North America.

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