Molecular and Morphological Divergence of Australian Wild Rice

Two types of perennial wild rice, Australian Oryza rufipogon and a new taxon Jpn2 have been observed in Australia in addition to the annual species Oryza meridionalis. Jpn2 is distinct owing to its larger spikelet size but shares O. meridionalis-like morphological features including a high density of bristle cells on the awn surface. All the morphological traits resemble O. meridionalis except for the larger spikelet size. Because Jpn2 has distinct cytoplasmic genomes, including the chloroplast (cp), cp insertion/deletion/simple sequence repeats were designed to establish marker systems to distinguish wild rice in Australia in different natural populations. It was shown that the new taxon is distinct from Asian O. rufipogon but instead resembles O. meridionalis. In addition, higher diversity was detected in north-eastern Australia. Reproductive barriers among species and Jpn2 tested by cross-hybridization suggested a unique biological relationship of Jpn2 with other species. Insertions of retrotransposable elements in the Jpn2 genome were extracted from raw reads generated using next-generation sequencing. Jpn2 tended to share insertions with other O. meridionalis accessions and with Australian O. rufipogon accessions in particular cases, but not Asian O. rufipogon except for two insertions. One insertion was restricted to Jpn2 in Australia and shared with some O. rufipogon in Thailand.

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Confirming the genetic affinity of the ‘Eyres Green’ saltbush cultivar as oldman saltbush (Atriplex nummularia Lindl.)

Australian Journal of Botany ◽

10.1071/bt14233 ◽

2014 ◽

Vol 62 (7) ◽

pp. 609 ◽

Cited By ~ 2

Author(s):

J. F. Sampson ◽

M. Byrne ◽

H. C. Norman ◽

E. Barrett-Lennard

Keyword(s):

Natural Populations ◽

Dioecious Species ◽

Green Is ◽

The North ◽

Eastern Australia ◽

North Eastern ◽

Atriplex Nummularia ◽

Nuclear Microsatellite ◽

Relationship Of ◽

North Eastern Part

Until recently, ‘Eyres Green’ was the only commercial cultivar of oldman saltbush available for forage planting and landscape rehabilitation. ‘Eyres Green’ is believed to be a clonal cultivar of the ecologically and economically important octoploid dioecious species Atriplex nummularia (Lindl.), but its actual identity is unknown. The genetic relationship of the ‘Eyres Green’ clonal cultivar to the two subspecies A. nummularia ssp. nummularia and A. nummularia ssp. spathulata (Aellen) was assessed using nuclear microsatellite markers, principal coordinate analysis and Bayesian clustering. ‘Eyres Green’ clustered with ssp. nummularia in all analyses, suggesting that the cultivar was derived from an individual of this subspecies, probably from the north-eastern part of the subspecies’ distribution in eastern Australia. Atriplex species are dioecous and substantially wind-pollinated. Plants of the ‘Eyres Green’ cultivar are female, so risk of genetic contamination from initial plantings is low, but could occur if plantings within pollination distance of natural populations set seed and establish male plants that subsequently become a source of pollen contamination.

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Freshwater Cyanobacteria of North-Eastern Australia: 2. Chroococcales

Phytotaxa ◽

10.11646/phytotaxa.133.1.1 ◽

2013 ◽

Vol 133 (1) ◽

pp. 1 ◽

Cited By ~ 5

Author(s):

GLENN B. MCGREGOR

Keyword(s):

Light Microscopy ◽

Natural Populations ◽

Northern Territory ◽

Detailed Account ◽

Ecological Data ◽

Eastern Australia ◽

North Eastern ◽

Rivers And Streams ◽

Original Illustrations ◽

Freshwater Habitats

This volume provides the first detailed account of the Chroococcales of north-eastern Australia. It provides keys, morphological and ecological data for 6 families, 33 genera and 112 species, and photomicrographs and original illustrations to enable the identification of natural populations based on stable and recognizable characters observable with the aid of light microscopy. Distributional data are based on extensive surveys at 270 sites representing the major freshwater habitats including rivers and streams, palustrine and lacustrine wetlands, thermal springs, and man-made reservoirs in Queensland and the Northern Territory as well as a review of the Australian phycological literature.

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Mating System and Genetic Structure of Natural Populations in Wild Rice Oryza rufipogon*

Plant Species Biology ◽

10.1111/j.1442-1984.1990.tb00190.x ◽

1990 ◽

Vol 5 (1) ◽

pp. 31-39 ◽

Cited By ~ 30

Author(s):

Hiroko Morishima ◽

Pascale Barbier

Keyword(s):

Genetic Structure ◽

Mating System ◽

Wild Rice ◽

Natural Populations ◽

Oryza Rufipogon

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Taxonomic and faunistic revision of Australian Diaphanosoma (Cladocera : Sididae)

Marine and Freshwater Research ◽

10.1071/mf9810813 ◽

1981 ◽

Vol 32 (5) ◽

pp. 813 ◽

Cited By ~ 14

Author(s):

NM Korovchinsky

Keyword(s):

Type Material ◽

South Eastern ◽

Eastern Australia ◽

North Eastern ◽

Relationship Of ◽

The Relationship

Examination of all type material and specimens collected from south-eastern, north-eastern and eastern Australia revealed five Diaphanosoma species in the Australian fauna, one of which is new- D. australiensis. D. excisum and D. unguiculatum are redescribed, and the lectotypes and paralectotypes of these species distinguished. The relationship of the Diaphanosoma fauna in Australia to that of other zoogeographical regions is discussed.

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RAPD variation within and between natural populations of the wild rice Oryza rufipogon from China and Brazil

Heredity ◽

10.1046/j.1365-2540.1999.00516.x ◽

1999 ◽

Vol 82 (6) ◽

pp. 638-644 ◽

Cited By ~ 44

Author(s):

Song Ge ◽

Giancarlo C X Oliveira ◽

Barbara A Schaal ◽

Li-Zhi Gao ◽

De-yuan Hong

Keyword(s):

Wild Rice ◽

Natural Populations ◽

Oryza Rufipogon ◽

Rapd Variation

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Identification and characterization of Australian wild rice strains of Oryza meridionalis and Oryza rufipogon by SINE insertion polymorphism

Genes & Genetic Systems ◽

10.1266/ggs.80.129 ◽

2005 ◽

Vol 80 (2) ◽

pp. 129-134 ◽

Cited By ~ 19

Author(s):

Jian-Hong Xu ◽

Nori Kurata ◽

Masahiro Akimoto ◽

Hisako Ohtsubo ◽

Eiichi Ohtsubo

Keyword(s):

Wild Rice ◽

Oryza Rufipogon ◽

Insertion Polymorphism ◽

Oryza Meridionalis ◽

Sine Insertion ◽

Identification And Characterization

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Freshwater Cyanobacteria of North-Eastern Australia: 3. Nostocales

Phytotaxa ◽

10.11646/phytotaxa.359.1.1 ◽

2018 ◽

Vol 359 (1) ◽

pp. 1 ◽

Cited By ~ 1

Author(s):

GLENN B. MCGREGOR

Keyword(s):

Natural Populations ◽

Filamentous Cyanobacteria ◽

Ecological Data ◽

The Third ◽

Final Volume ◽

Eastern Australia ◽

North Eastern ◽

Rivers And Streams ◽

Freshwater Habitats ◽

Artificial Reservoirs

This is the first detailed account of the Nostocales of north-eastern Australia, and the third and final volume in the series documenting the freshwater cyanobacterial flora of this region. This monophyletic group comprises filamentous cyanobacteria which produce heterocytes and akinetes. Amongst the cyanobacteria, this group is perhaps the most morphologically diverse, occurring as single filaments, unstructured aggregations, or colonies of various arrangements, which may exhibit false-, true-, or no-branching. This volume provides keys, morphological and ecological data, and photomicrographs for 35 genera, and 93 species from nine families to enable the identification of natural populations based on stable and recognizable characters observable by light microscopy. Distributional data are based on extensive surveys incompassing 358 sites which represent the major freshwater habitats of the region including rivers and streams, palustrine and lacustrine wetlands, thermal springs, and artificial reservoirs, as well as a review of the Australian phycological literature.

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