Phylogenetic connections of phyllodinous species of Acacia outside Australia are explained by geological history and human-mediated dispersal

2012 ◽  
Vol 25 (6) ◽  
pp. 390 ◽  
Author(s):  
Gillian K. Brown ◽  
Daniel J. Murphy ◽  
James Kidman ◽  
Pauline Y. Ladiges
Keyword(s):  
Indian Ocean ◽  
East Asia ◽  
New Caledonia ◽  
New Guinea ◽  
The Philippines ◽  
Western Pacific ◽  
Disjunct Distribution ◽  
South East Asia ◽  
Northern Australia ◽  
Australian Species

Acacia sensu stricto is found predominantly in Australia; however, there are 18 phyllodinous taxa that occur naturally outside Australia, north from New Guinea to Indonesia, Taiwan, the Philippines, south-western Pacific (New Caledonia to Samoa), northern Pacific (Hawaii) and Indian Ocean (Mascarene Islands). Our aim was to determine the phylogenetic position of these species within Acacia, to infer their biogeographic history. To an existing molecular dataset of 109 taxa of Acacia, we added 51 new accessions sequenced for the ITS and ETS regions of nuclear rDNA, including samples from 15 extra-Australian taxa. Data were analysed using both maximum parsimony and Bayesian methods. The phylogenetic positions of the extra-Australian taxa sampled revealed four geographic connections. Connection A, i.e. northern Australia?South-east Asia?south-western Pacific, is shown by an early diverging clade in section Plurinerves, which relates A. confusa from Taiwan and the Philippines (possibly Fiji) to A. simplex from Fiji and Samoa. That clade is related to A. simsii from southern New Guinea and northern Australia and other northern Australian species. Two related clades in section Juliflorae show a repeated connection (B), i.e. northern Australia?southern New Guinea?south-western Pacific. One of these is the ?A. auriculiformis clade', which includes A. spirorbis subsp. spirorbis from New Caledonia and the Loyalty Islands as sister to the Queensland species A. auriculiformis; related taxa include A. mangium, A. leptocarpa and A. spirorbis subsp. solandri. The ?A. aulacocarpa clade' includes A. aulacocarpa, A. peregrinalis endemic to New Guinea, A. crassicarpa from New Guinea and Australia, and other Australian species. Acacia spirorbis (syn. A. solandri subsp. kajewskii) from Vanuatu (Melanesia) is related to these two clades but its exact position is equivocal. The third biogeographic connection (C) is Australia?Timor?Flores, represented independently by the widespread taxon A. oraria (section Plurinerves) found on Flores and Timor and in north-eastern Queensland, and the Wetar island endemic A. wetarensis (Juliflorae). The fourth biogeographic connection (D), i.e. Hawaii?Mascarene?eastern Australia, reveals an extreme disjunct distribution, consisting of the Hawaiian koa (A. koa, A. koaia and A. kaoaiensis), sister to the Mascarene (R�union Island) species A. heterophylla; this clade is sister to the eastern Australian A. melanoxylon and A. implexa (all section Plurinerves), and sequence divergence between taxa is very low. Historical range expansion of acacias is inferred to have occurred several times from an Australian?southern New Guinean source. Dispersal would have been possible as the Australian land mass approached South-east Asia, and during times when sea levels were low, from the Late Miocene or Early Pliocene. The close genetic relationship of species separated by vast distances, from the Indian Ocean to the Pacific, is best explained by dispersal by Austronesians, early Homo sapiens migrants from Asia.

The systematics and biology of the spider genus Nephila (Araneae:Nephilidae) in the Australasian region

2007 ◽  
Vol 21 (5) ◽  
pp. 407 ◽  
Author(s):  
Mark S. Harvey ◽  
Andrew D. Austin ◽  
Mark Adams
Keyword(s):  
New Zealand ◽  
East Asia ◽  
New Caledonia ◽  
New Guinea ◽  
South East Asia ◽  
Northern Australia ◽  
Allozyme Data ◽  
New Synonyms ◽  
Nephila Plumipes ◽  
Australasian Region

Five species of the nephilid genus Nephila Leach are found in the Australasian region, which for the purposes of this study was defined as Australia and its dependencies (including Lord Howe I., Norfolk I., Christmas I., Cocos (Keeling) Is), New Guinea (including Papua New Guinea and the Indonesian province of West Papua), Solomon Is, Vanuatu, New Caledonia, Fiji, Tonga, Niue, New Zealand and other parts of the south-west Pacific region. All species are redescribed and illustrated. Nephila pilipes (Fabricius) occurs in the closed forests of eastern and northern Australia, New Guinea, Solomon Is and Vanuatu (through to South-East Asia); N. plumipes (Latreille) is found in Australia (including Lord Howe I. and Norfolk I.), New Guinea, Vanuatu, Solomon Is and New Caledonia; N. tetragnathoides (Walckenaer) inhabits Fiji, Tonga and Niue; N. antipodiana (Walckenaer) occurs in northern Australia (as well as Christmas I.), New Guinea and Solomon Is (through to South-East Asia); and N. edulis (Labillardière) is found in Australia (including Cocos (Keeling) Is), New Guinea, New Zealand and New Caledonia. Epeira (Nephila) walckenaeri Doleschall, E. (N.) hasseltii Doleschall, N. maculata var. annulipes Thorell, N. maculata jalorensis Simon, N. maculata var. novae-guineae Strand, N. pictithorax Kulczyński, N. maculata var. flavornata Merian, N. pictithorax Kulczyński, N. maculata var. flavornata Merian, N. maculata piscatorum de Vis, and N. (N.) maculata var. lauterbachi Dahl are proposed as new synonyms of N. pilipes. Nephila imperialis var. novaemecklenburgiae Strand, N. ambigua Kulczyński, N. sarasinorum Merian and N. celebesiana Strand are proposed as new synonyms of N. antipodiana. Meta aerea Hogg, N. meridionalis Hogg, N. adelaidensis Hogg and N. meridionalis hermitis Hogg are proposed as new synonyms of N. edulis. Nephila picta Rainbow is removed from the synonymy of N. plumipes and treated as a synonym of N. edulis, and N. nigritarsis insulicola Pocock is removed from the synonymy of N. plumipes and treated as a synonym of N. antipodiana. Allozyme data demonstrate that N. pilipes is distinct at the 80% FD level from N. edulis, N. plumipes and N. tetragnathoides. Nephila plumipes and N. tetragnathoides, deemed to represent sister-taxa owing to the shared presence of a triangular protrusion of the male pedipalpal conductor, were found to differ at 15% FD in the genetic study. No genetic differentiation was found between 10 populations of N. edulis sampled across mainland Australia. Species of the genus Nephila have been extensively used in ecological and behavioural studies, and the biology of Nephila species in the Australasian region is extensively reviewed and compared with studies on Nephila species from other regions of the world.

A revision of the Australian Stem Borers hitherto referred to Schoenobius and Scirpophaga (Lepidoptera: Pyralidae, Schoenobiinae)

1960 ◽  
Vol 8 (2) ◽  
pp. 307 ◽  
Author(s):  
IFB Common
Keyword(s):  
New Species ◽  
East Asia ◽  
New Guinea ◽  
Stem Borer ◽  
South East Asia ◽  
Northern Australia ◽  
Stem Borers ◽  
Cultivated Rice ◽  
Australian Species ◽  
A New Species

The Australian pyralid stem borers of Gramineae, Cyperaceae, and Juncaceae, previously assigned to Schoenobius Duponchel and Scirpophaga Treitschke, are here referred to six genera. Scirpophaga Treit. - Eight species are recognized: S. chrysorrhoa Zeller, S. phaedima, sp. nov., S. limnochares, sp. nov., S. xantharrenes, sp. nov., S. imparella (Meyrick), S. helodes, sp. nov., S. percna, sp. nov., and S. ochroleuca (Meyrick). Though some of these bear a superficial resemblance to the true rice stem borers, the genus includes species whose larvae attack sedges (Cyperaceae). Helonastes, gen. nov. - The genus is based on a new species, H. acentrus, associated with Eleocharis (Cyperaceae) in central Queensland. Niphadoses, gen. nov.-The genus is erected to include three new Australian species, N. palleucus, which is associated with cultivated rice in north-western Australia, N. elachia, and N. hoplites, together with N. chionotus (Meyrick) from New Guinea and N. gilbiverbis (Zeller) from India. Catagela Walker. - A new species, C. adoceta, from northern Australia, is described. Tryporyza gen. nov. - The genus is established to receive the two important stem-borer pests of cultivated rice, Tipanaea innotata Walker from south-east Asia and northern Australia and Chilo incertulas Walker from south-east Asia, previously referred to Scirpophaga and Schoenobius respectively. Also included are Scirpophaga butyrota Meyrick from New Guinea and Schoenobius melanostigmus Turner from the Cape York Peninsula. It is suggested that T. innotata already occurred in northern Australia before European settlement. Tipanaea Walker. - The genus is restricted to the single Australian species, T. patulella Walker, associated with Juncaceae. Genitalic and other structures used to distinguish these genera are discussed. The genitalia of both sexes and the wings of the Australian species are figured, and keys to the genera and species are included.

What was the vegetation in northwest Australia during the Paleogene, 66–23million years ago?

2018 ◽  
Vol 66 (7) ◽  
pp. 556 ◽  
Author(s):  
Michael K. Macphail ◽  
Robert S. Hill
Keyword(s):  
East Asia ◽  
National Park ◽  
Pacific Islands ◽  
New Caledonia ◽  
New Guinea ◽  
First Record ◽  
South East Asia ◽  
North West ◽  
The North ◽  
Dry Conditions

Fossil pollen and spores preserved in drillcore from both the upper South Alligator River (SARV) in the Kakadu National Park, Northern Territory and the North-West Shelf, Western Australia provide the first record of plants and plant communities occupying the coast and adjacent hinterland in north-west Australia during the Paleogene 66 to 23million years ago. The palynologically-dominant woody taxon is Casuarinaceae, a family now comprising four genera of evergreen scleromorphic shrubs and trees native to Australia, New Guinea, South-east Asia and Pacific Islands. Rare taxa include genera now mostly restricted to temperate rainforest in New Guinea, New Caledonia, New Zealand, South-East Asia and/or Tasmania, e.g. Dacrydium, Phyllocladus and the Nothofagus subgenera Brassospora and Fuscospora. These appear to have existed in moist gorges on the Arnhem Land Plateau, Kakadu National Park. No evidence for Laurasian rainforest elements was found. The few taxa that have modern tropical affinities occur in Eocene or older sediments in Australia, e.g. Lygodium, Anacolosa, Elaeagnus, Malpighiaceae and Strasburgeriaceae. We conclude the wind-pollinated Oligocene to possibly Early Miocene vegetation in the upper SARV was Casuarinaceae sclerophyll forest or woodland growing under seasonally dry conditions and related to modern Allocasuarina/Casuarina formations. There are, however, strong floristic links to coastal communities growing under warm to hot, and seasonally to uniformly wet climates in north-west Australia during the Paleocene-Eocene.

Three new synonyms of Solenostoma truncatum (Nees) R.M.Schust. ex Váňa et D.G. Long

Phytotaxa ◽  
2015 ◽  
Vol 231 (3) ◽  
pp. 295 ◽  
Author(s):  
Wei Li ◽  
JIŘÍ VÁŇA
Keyword(s):  
Sri Lanka ◽  
East Asia ◽  
New Guinea ◽  
South East Asia ◽  
Northern Australia ◽  
Leaf Form ◽  
New Synonyms ◽  
Marginal Cells

Solenostoma truncatum (Nees 1830: 29) R.M. Schust. ex Váňa & D.G.Long (2009: 509) is widely distributed and the commonest Solenostoma-species in south-east Asia, reaching from Himalayas, India and Srí Lanka to China, Japan, Micronesia, Samoa, New Guinea and northern Australia (Queensland). The species is very variable: its leaf form varies from subquadrate-rotund, ovate, ovate-ligulate to rarely ligulate, the cell texture is also relatively variable, but the marginal leaf-cells are mostly ± equally thickened in 1–2 or more rows, and the cuticle is usually at least minutely verrucose, rarely nearly smooth. Perianth is shortly to longly exserted, fusiform or ovate, perianth mouth is contracted or wide, crenulate, sometimes with ciliate marginal cells. Many  synonyms were published for S. truncatum.

scholarly journals Wild to domesticates: genomes of edible diploid bananas hold traces of several undefined genepools

2021 ◽  
Author(s):  
Julie Sardos ◽  
Catherine Breton ◽  
Xavier Perrier ◽  
Ines Van Den Houwe ◽  
Janet Paofa ◽  
...  
Keyword(s):  
Dna Sequencing ◽  
East Asia ◽  
Papua New Guinea ◽  
Restriction Site ◽  
New Guinea ◽  
The Philippines ◽  
Source Population ◽  
South East Asia ◽  
Sequencing Data ◽  
North Borneo

AbstractThis study is an unprecedent exploration of the diversity of 226 diploid bananas genotyped with restriction-site-associated DNA sequencing data (RADseq) to clarify the processes that led to the creation of edible diploid AA bananas. This wide set included 72 seedy bananas, mostly M. acuminata from different genepools, and 154 edible, i.e. parthenocarpic and sterile, AA accessions obtained from genebanks and recent collecting missions. We highlighted the geographic organisation of the diversity of edible AAs and confirmed the admixed nature of many and further conducted introgressions tests within AAs from South East Asia and New Guinea. Lastly, taking advantage of the presence of an important number of M. acuminata ssp. banksii (22) and of AA from Papua New Guinea (76) in the set, we investigated the patterns of differentiation between wild and cultivated bananas seemingly belonging to the same genepool. We discovered a few cultivated AAs that may be of pure origins both in South-East Asia and in New Guinea. We also detected two undefined parental genepools in South East Asia for which regions of origin could be Thailand and a region between north Borneo and the Philippines, respectively. Finally, we suggest the existence of a third genepool in New Guinea island that might be a source population for both edible AAs and the local M. acuminata ssp. banksii.

Rice and Forest Farming in East and South-East Asia

2006 ◽  
Author(s):  
Graeme Barker
Keyword(s):  
East Asia ◽  
Pacific Islands ◽  
Deciduous Forest ◽  
Yellow River ◽  
Solomon Islands ◽  
Coniferous Forest ◽  
New Guinea ◽  
The Philippines ◽  
South East Asia ◽  
North East

East and South-East Asia is a vast and diverse region (Fig. 6.1). The northern boundary can be taken as approximately 45 degrees latitude, from the Gobi desert on the west across Manchuria to the northern shores of Hokkaido, the main island of northern Japan. The southern boundary is over 6,000 kilometres away: the chain of islands from Java to New Guinea, approximately 10 degrees south of the Equator. From west to east across South-East Asia, from the western tip of Sumatra at 95 degrees longitude to the eastern end of New Guinea at 150 degrees longitude, is also some 6,000 kilometres. Transitions to farming within this huge area are discussed in this chapter in the context of four major sub-regions: China; the Korean peninsula and Japan; mainland South-East Asia (Vietnam, Laos, Cambodia, Thailand, the Malay peninsula); and island South-East Asia (principally Taiwan, the Philippines, Sumatra, Java, Borneo, Sulawesi, and New Guinea). The chapter also discusses the development of agricultural systems across the Pacific islands to the east, both in island Melanesia (the Bismarck Archipelago and the Solomon Islands east of New Guinea) and in what Pacific archaeologists are terming ‘Remote Oceania’, the islands dotted across the central Pacific as far as Hawaii 6,000 kilometres east of Taiwan and Easter Island some 9,000 kilometres east of New Guinea—a region as big as East Asia and South-East Asia put together. The phytogeographic zones of China reflect the gradual transition from boreal to temperate to tropical conditions, as temperatures and rainfall increase moving southwards (Shi et al., 1993; Fig. 6.2 upper map): coniferous forest in the far north; mixed coniferous and deciduous forest in north-east China (Manchuria) extending into Korea; temperate deciduous and broadleaved forest in the middle and lower valley of the Huanghe (or Yellow) River and the Huai River to the south; sub-tropical evergreen broad-leaved forest in the middle and lower valley of the Yangzi (Yangtze) River; and tropical monsoonal rainforest on the southern coasts, which then extends southwards across mainland and island South-East Asia. Climate and vegetation also differ with altitude and distance from the coast.

scholarly journals A revision of Australopapuan and New Caledonian Brunettia (Diptera, Psychodidae)

1990 ◽  
Vol 4 (5) ◽  
pp. 973 ◽  
Author(s):  
DA Duckhouse
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
New Caledonia ◽  
New Guinea ◽  
The Philippines ◽  
Northern Australia ◽  
Southern States ◽  
Three New Species ◽  
Papua New Guinean ◽  
Southern Species

Brunettia Annandale (sensu Duckhouse 1966) has previously been known in Australopapua from thirty-three species, comprising twenty-eight from Papua-New Guinea, but only five from Australia, all in the southern states. This anomaly is now removed with the description of seventeen new species from Queensland and the Northern Territory, showing that the major evolutionary centre extends from Papua-New Guinea far into northern Australia, and that the southern species are not in reality separated by a disjunction. Three new species are also described from southern Australia, two from New Guinea, and two from New Caledonia (the first from this island). The phylogenetic importance of Brunettia is especially due to the inclusion in it of taxa that are cladistically basal and annectant, nearly all Australopapuan. The mix of tribal, generic, subgeneric and species characters found in earlier descriptions is ordered into a strict hierarchical sequence, and Brunettia is divided into seven subgenera — Brunettia, s. str., Plesiobrunettia, subg. nov., Atrichobrunettia Satchell, Maurobrunettia, subg. nov., Campanulobrunettia, subg. nov., Horobrunettia, subg. nov., and Mrrousiella Vaillant, stat. nov., this last resurrected from synonymy with Atrichobrunettia. Of these, Maurobrunettia occurs in northern Australia, Plesiobrunettia is New Guinean, Campanulobrunettia and Atrrchobrunettia are Australopapuan, and Horobrunettia is mainly Australopapuan but has one species in the Philippines. Brunettia s. str. is more widely distributed, but extensively diversified in Papua-New Guinea, and Mirousiella is European. The ten Papua-New Guinean species placed by Quate & Quate (1967) in Atrichobrunettia are transferred into the various subgenera of Brunettia (combs. nov.), and their Brunettia species are also assorted into these subgenera. New keys are provided covering all Australopapuan Brunettia species. The genealogical status of Mormiini and Maruinini are discussed. It is concluded that because Mormiini are an offshoot of the Maruinini, the Maruinini are paraphyletic, but that this defect cannot be overcome until more is known of maruinine phylogeny.

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