Chromosome numbers of Western Australian species ofVillarsia (Menyanthaceae)

1988 ◽  
Vol 161 (1-2) ◽  
pp. 49-52 ◽  
Author(s):  
Robert Ornduff ◽  
T. I. Chuang
Keyword(s):  
Chromosome Numbers ◽  
Australian Species ◽  
Western Australian

Interspecific Hybridisation of Boronias

1999 ◽  
Vol 47 (6) ◽  
pp. 851 ◽  
Author(s):  
I. A. Astarini ◽  
G. Yan ◽  
J. A. Plummer
Keyword(s):  
Low Temperature ◽  
Silica Gel ◽  
Chromosome Numbers ◽  
Pollen Viability ◽  
Female Parent ◽  
Fluorescein Diacetate ◽  
Interspecific Hybridisation ◽  
Australian Species ◽  
Western Australian

Interspecific hybridisation within the genus Boronia was attempted by using species with a range of chromosome numbers. Crosses were possible between Western Australian species including those with B. heterophylla as the female parent and pollen from B. molloyae (n = 8), B. megastigma (n = 7), B. purdienana (n = 9) and B. ramosa (n = 18). Cytological studies revealed that B. heterophylla genotypes had different chromosome numbers; ‘Red’ had 2n = 15, whereas ‘Moonglow’ and ‘Cameo’ had 2n = 14. The F 1 hybrid from B. heterophylla ‘Red’ × B. megastigma had 2n = 15. Pollen viability, examined by using fluorescein diacetate, varied from 20% in B. crenulata to 80% in B. purdieana. Pollen of most species could be stored for 12 months in sealed containers at −20°C. Drying with silica gel desiccant did not improve storage, nor did ultra-low temperature (−196°C). Stored pollen was successfully used for interspecific hybridisation.

Nodulation and performance of exotic and native legumes in Australian soils

2003 ◽  
Vol 51 (5) ◽  
pp. 543 ◽  
Author(s):  
María A. Pérez-Fernández ◽  
Byron B. Lamont
Keyword(s):  
Native Species ◽  
Treated Soil ◽  
Retama Sphaerocarpa ◽  
Australian Species ◽  
And Performance ◽  
Natural Stands ◽  
High Degree ◽  
Western Australian ◽  
Cytisus Balansae ◽  
New Habitats

Six Spanish legumes, Cytisus balansae, C. multiflorus, C. scoparius, C. striatus, Genista hystrix and Retama sphaerocarpa, were able to form effective nodules when grown in six south-western Australian soils. Soils and nodules were collected from beneath natural stands of six native Australian legumes, Jacksonia floribunda, Gompholobium tomentosum, Bossiaea aquifolium, Daviesia horrida, Gastrolobium spinosum and Templetonia retusa. Four combinations of soils and bacterial treatments were used as the soil treatments: sterile soil (S), sterile inoculated soils (SI), non-treated soil (N) and non-treated inoculated soils (NI). Seedlings of the Australian species were inoculated with rhizobia cultured from nodules of the same species, while seedlings of the Spanish species were inoculated with cultures from each of the Australian species. All Australian rhizobia infected all the Spanish species, suggesting a high degree of 'promiscuity' among the bacteria and plant species. The results from comparing six Spanish and six Australian species according to their biomass and total nitrogen in the presence (NI) or absence (S) of rhizobia showed that all species benefitted from nodulation (1.02–12.94 times), with R.�sphaerocarpa and C. striatus benefiting more than the native species. Inoculation (SI and NI) was just as effective as, or more effective than the non-treated soil (i.e. non-sterile) in inducing nodules. Nodules formed on the Spanish legumes were just as efficient at fixing N2 as were those formed on the Australian legumes. Inoculation was less effective than non-treated soil at increasing biomass but just as effective as the soil at increasing nitrogen content. Promiscuity in the legume–bacteria symbiosis should increase the ability of legumes to spread into new habitats throughout the world.

Western Australian Species ofSmittiumand Other Trichomycetes in Aquatic Insect Larvae

Mycologia ◽  
1992 ◽  
Vol 84 (3) ◽  
pp. 392-398 ◽  
Author(s):  
Robert W. Lichtwardt ◽  
Marvin C. Williams
Keyword(s):  
Aquatic Insect ◽  
Insect Larvae ◽  
Australian Species ◽  
Western Australian ◽  
Aquatic Insect Larvae

Cytoevolutionary Studies in the Genus Bulbine Wolf (Liliaceae) .II. The Australian Annual Taxa (Bulbine semibarbata s.1.)

1986 ◽  
Vol 34 (5) ◽  
pp. 505 ◽  
Author(s):  
EM Watson
Keyword(s):  
Species Richness ◽  
Chromosome Numbers ◽  
The Other ◽  
Root Tip ◽  
Polyploid Complex ◽  
Southwestern Australia ◽  
Australian Species ◽  
Eastern Australia ◽  
Karyotypic Diversity ◽  
Interpopulation Variation

A cytological survey, using root tip mitotic cells and supplemented by some crosses and pollen fertility studies, was carried out on plants of 55 populations of the Australian annual Bulbine sernibarbata s.1. (Liliaceae). There are 4x, 8x and 12.x populations.The 4x forms are almost completely confined to eastern Australia and comprise populations of two kinds: (1) 28-chromosome types, corresponding in morphology to B. alata Baijnath, which to date has had limited taxonomic acceptance; (2) 26-chromosome types with the morphology of B. sernibarbata s. str. The alata form occurs in arid, the sernibarbata in more mesic, areas. The eastern 8x populations are mainly 2n = 54 and are intermediate between the other two taxa in both range and morphology. This suggests an allopolyploid origin based on hybridisation between the alata and sernibarbata types. The western 8x populations are nearly all 2n = 52, with much interpopulation variation in karyotype and a mesic distribution similar to that of the eastern 26-chromosome types. The karyotypic diversity parallels the species richness of other genera in southwestern Australia and indicates that the complex may be older than the corresponding polyploid complex within the perennial B. bulbosa s.1. The 12x (2n =78) populations are confined to arid and transitional rainfall areas of Western Australia. The identification of a distinctive 28-chromosome karyotype for the alata group gives support to the recognition of B. alata Baijnath, and, by providing a logical euploid bridge between the chromosome numbers of the African (2n = 14) and Australian species, strengthens the arguments for treating the two groups as congeneric.

Western Australian Species-Rich Kwongan (Sclerophyllous Shrubland) Affected by Drought

1980 ◽  
Vol 28 (6) ◽  
pp. 573 ◽  
Author(s):  
RJ Hnatiuk ◽  
AJM Hopkins
Keyword(s):  
Water Stress ◽  
Drought Stress ◽  
Western Australia ◽  
Vascular Plants ◽  
Perennial Species ◽  
Australian Species ◽  
Vegetative Regeneration ◽  
Average Rainfall ◽  
Two Factors ◽  
Western Australian

Observations of responses to aseasonal water stress are reported for 238 above-ground perennial species of native vascular plants in a 20 km2 area of Western Australia surveyed during the second consecutive year of below average rainfall. Eighty-six species (36%) were found with dead individuals. Both vegetative regeneration and seedling regeneration appeared to be successful means of surviving drought stress in this region. The drought affected species of the families Proteaceae and Epacridaceae more than those of other major families. There are similarities in the response of the vegetation to the two main, irregularly occurring phenomena, aseasonal drought and fire: both can affect vegetation over large areas and yet leave considerable patches within the area that are little affected. Together these two factors contribute to the production of complex and dynamic mosaic-patterns in the vegetation.

scholarly journals Apodasmia ceramophila, a new Western Australian species of Restionaceae

Telopea ◽  
2014 ◽  
Vol 16 ◽  
pp. 13-17
Author(s):  
Barbara G Briggs ◽  
Lawrence AS Johnson
Keyword(s):  
Australian Species ◽  
Western Australian

Review of the wolf spider genus Artoria Thorell (Araneae : Lycosidae)

2002 ◽  
Vol 16 (2) ◽  
pp. 209 ◽  
Author(s):  
Volker W. Framenau
Keyword(s):  
Type Species ◽  
Wolf Spider ◽  
The Philippines ◽  
African Species ◽  
Australian Species ◽  
Incertae Sedis ◽  
Nomen Dubium ◽  
New Synonymy ◽  
Western Australian ◽  
Sclerophyll Forests

The Australasian wolf spider genus Artoria, with A. parvula Thorell, 1877 as type species, is revised in part. In addition to A. parvula (=A. luwamata Barrion & Litsinger, 1995, new synonymy), recorded from the Philippines and Indonesia, and A. palustris Dahl, 1908 from Papua New Guinea, it includes the Australian A. albopedipalpis, sp. nov., A. avona, sp. nov., A. cingulipes Simon, 1909, A. flavimanus Simon, 1909 (=Lycosa neboissi McKay, 1976, new synonymy), A. howquaensis, sp. nov., A. lineata (L. Koch, 1877), A. mckayi, sp. nov., A. quadrata, sp. nov., A. taeniifera Simon, 1909, A. triangularis, sp. nov., A. ulrichi, sp. nov. and A. versicolor (L. Koch, 1877). Artoriella flavimanus, the type species of Artoriella Roewer, 1960, is returned to Artoria. Of the remaining species of Artoriella, the Western Australian species A. cingulipes and A. taeniifera are transferred to Artoria, the African species Artoriella amoena Roewer, 1960, A. maculatipes Roewer, 1960 and A. lycosimorpha (Strand, 1909) are considered incertae sedis and Artoriella maura (Urquhart, 1891) from New Zealand is considered a nomen dubium. Trabaeola Roewer is a junior synonym of Artoria, as its type species, T. lineata, is transferred to Artoria. Trabea australiensis (L. Koch, 1877) is considered a nomen dubium. The genus Artoria is characterised by a unique apophysis near the base of the embolus of the male pedipalp. It does not fit into the existing lycosid subfamilies, which have been established by investigation of mainly Northern Hemisphere taxa. Artoria is widespread in Australia and species can be found in a range of habitats (swamps and riverbanks, open areas, rain and dry sclerophyll forests).

Cladistic and Biogeographic Analysis of Western Australian Species of Eucalyptus L'Hérit., Informal Subgenus Monocalyptus Pryor & Johnson

1987 ◽  
Vol 35 (3) ◽  
pp. 251 ◽  
Author(s):  
PY Ladiges ◽  
CJ Humphries ◽  
MIH Brooker
Keyword(s):  
Cladistic Analysis ◽  
Consensus Tree ◽  
Parsimony Method ◽  
Australian Species ◽  
Group A ◽  
Paraphyletic Group ◽  
Western Australian ◽  
Larger Sample ◽  
Eastern Species

The Western Australian species of Eucalyptus informal subgenus Monocalyptus were shown to be a paraphyletic group. A cladistic analysis of a larger sample of taxa, using a Wagner parsimony method, showed that the Queensland species E. rubiginosa is the sister species to all others in Monocalyptus. The Western Australian species E. jacksonii and E. brevistylis were found to be connected to eastern taxa and are probably related to the lineages leading to the 'green ashes' and 'stringybarks' etc. The remaining Western Australian species formed a number of subclades, one of which, including E. marginata and E. staeri, had a separate connection with eastern species, probably all of the 'blue ashes'. A revised informal classification recognising three sections, five subsections, five infrasections, five superseries, five series and two subseries is presented. Biogeographic analyses of each of the major subclades are summarised as one area-consensus tree representing a classification of areas as determined from the taxonomy of the eucalypts. A comparison with the geological and climatological history points to the Tertiary as the likely time of first speciation within Monocalyptus.

scholarly journals A newly recognised species of Cryptes Maskell 1892 (Hemiptera: Coccidae) from Western Australia

Zootaxa ◽  
2018 ◽  
Vol 4508 (1) ◽  
pp. 101 ◽  
Author(s):  
YEN-PO LIN ◽  
TAKUMASA KONDO ◽  
TAKUMASA KONDO ◽  
PENNY J. GULLAN ◽  
LYN G. COOK
Keyword(s):  
Adult Female ◽  
Western Australia ◽  
Dna Sequences ◽  
Species Complex ◽  
Phylogenetic Analyses ◽  
Australian Species ◽  
Adult Females ◽  
Nuclear Loci ◽  
Acacia Aneura ◽  
Western Australian

Cryptes utzoni Lin, Kondo & Cook sp. n. (Hemiptera: Coccidae) is described based on adult female morphology and DNA sequences from mitochondrial and nuclear loci. This Australian endemic species was found on the stem of Acacia aneura (Fabaceae) in Western Australia. All phylogenetic analyses of three independent DNA loci show that C. utzoni is closely related to C. baccatus (Maskell), the type and only species of Cryptes Maskell, 1892. The adult female of C. utzoni is described and illustrated and a table is provided of the characters that differ among adult females of the two species of Cryptes now recognised (C. baccatus and C. utzoni) and a morphologically similar Western Australian species, Austrolichtensia hakearum (Fuller). There is deep genetic divergence in COI among samples of C. baccatus, suggesting the possibility of a species complex in this taxon. 

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