Hybridism in the Kunzea ericoides complex (Myrtaceae): an analysis of artificial crosses

2005 ◽  
Vol 18 (2) ◽  
pp. 117 ◽  
Author(s):  
P. J. de Lange ◽  
H. R. Toelken ◽  
B. G. Murray ◽  
P. M. Datson
Keyword(s):  
New Zealand ◽  
In Situ Hybridisation ◽  
Sequence Divergence ◽  
Wild Plants ◽  
Molecular Evidence ◽  
Herbarium Specimens ◽  
European Settlement ◽  
Genomic In Situ Hybridisation ◽  
Kunzea Ericoides ◽  
Leptospermum Scoparium

Observations of wild plants and herbarium specimens suggest that hybridism is a feature of the Australasian Kunzea ericoides (Myrtaceae) complex. In this study 73 artificial cross combinations were attempted with New Zealand material of Leptospermum scoparium, five Kunzea species, two varieties and six informally recognised entities within the New Zealand K. ericoides complex. The results of these crosses are documented, and for five hybrids spanning the intergeneric, interspecific and intraspecific crosses attempted, we provide a more detailed assessment based on morphology, molecular (nrDNA and chloroplast) sequence variation, and genomic in situ hybridisation (GISH). This is the first time GISH has been used in the Myrtaceae. Hybrids were easily generated between the New Zealand members of the K. ericoides complex, but not between them and the Australian K. ericoides complex. We were unable to produce hybrids between the New Zealand K. ericoides complex and two more distantly related Australian species, K. baxteri and K. parvifolia. Intergeneric crosses between New Zealand plants of Leptospermum scoparium, Kunzea sinclairii and an informally recognised variant K. aff. ericoides (b) were successfully produced, but failed to flower. The molecular evidence and observations after GISH show that even when low levels of sequence divergence exist, genome differentiation, to different extents, can be observed. The results confirm some suspected New Zealand hybrid complexes. However, while hybrids were easily generated artificially, natural instances of hybridism appear to be largely confined to those habitats significantly disturbed since European settlement of both countries.

Nitrogen and carbon cycling in a New Zealand pumice soil under a manuka (Leptospermum scoparium) and kanuka (Kunzea ericoides) shrubland

Soil Research ◽  
2009 ◽  
Vol 47 (7) ◽  
pp. 725 ◽  
Author(s):  
D. J. Ross ◽  
N. A. Scott ◽  
S. M. Lambie ◽  
C. M. Trotter ◽  
N. J. Rodda ◽  
...  
Keyword(s):  
New Zealand ◽  
Mineral Soil ◽  
N Cycling ◽  
Stand Age ◽  
Forest Site ◽  
N Availability ◽  
Volcanic Soils ◽  
Total N ◽  
Kunzea Ericoides ◽  
Leptospermum Scoparium

Shrubland communities dominated by manuka (Leptospermum scoparium J. Forst. and G. Forst.) and kanuka (Kunzea ericoides var. ericoides ((A. Rich) J. Thompson) are widespread throughout New Zealand. They frequently colonise disturbed land surfaces and are important for erosion mitigation, and also for their capacity to act as a carbon (C) sink. We here investigate C and nitrogen (N) cycling in 3 stands (~26–56 years old) that had established on a repeatedly burned forest site on a Podzolic Orthic Pumice soil in the Turangi area, central North Island. For comparison, limited measurements of N cycling were also made at other manuka–kanuka sites on non-volcanic soils. Leaf N concentrations at the Turangi site were 11.8–13.9 g/kg, and lower than those at many of the other manuka–kanuka stands. Total annual litterfall and N content increased with stand age, as did total N concentrations in FH material and mineral soil (0–100 mm depth). Total C concentrations in mineral soil did not, however, differ significantly in the 3 stands. Levels of soil microbial C and N, rates of carbon dioxide production, and metabolic coefficients (qCO2 values) suggest C cycling could be fairly rapid at this site. In contrast, rates of net mineral-N and nitrate-N production were low to very low compared with those in similar pumice soils under angiosperm–conifer forests, and in the non-volcanic soils under other manuka–kanuka stands. Low N availability and tight N cycling at the Turangi site are thereby strongly suggested. No definitive explanation for the atypically low N availability at this site is apparent, although the possible effects of previous forest burnings may have been a contributing factor. The continued growth of these shrubs, nevertheless, shows they can compete successfully for the N that does become available through gross N mineralisation in the Turangi ecosystem.

On the Identity of the Weedy Bittercresses (Cardamine : Brassicaceae) in United States Nurseries: Evidence from Molecules and Morphology

Weed Science ◽  
2011 ◽  
Vol 59 (1) ◽  
pp. 123-135 ◽  
Author(s):  
Angela R. Post ◽  
Regina Ali ◽  
Alexander Krings ◽  
Jenny Xiang ◽  
Brian R. Sosinski ◽  
...  
Keyword(s):  
United States ◽  
New Zealand ◽  
Its Region ◽  
The United States ◽  
Nuclear Ribosomal Dna ◽  
Molecular Evidence ◽  
Herbarium Specimens ◽  
Interacting Protein ◽  
Cardamine Flexuosa ◽  
Container Nurseries

Bittercress (Brassicaceae) is one of the most prolific and costly weeds of the container nursery industry. Bittercress accessions from container nurseries throughout the major production zones in the United States were examined and compared with herbarium specimens. The identity of these weedy bittercress species were further explored using sequences of the nuclear ribosomal DNA (nrDNA) internal transcribed spacer (ITS) region and the nrDNA region for the COP1-interacting protein 7 (CIP7). Four species of bittercress were detected in the nursery industry of the United States, including New Zealand bittercress, hairy bittercress, flexuous bittercress, and little bittercress. The taxon referred to here as Cardamine flexuosa With. (flexuous bittercress) likely contains two genotypes previously reported as European C. flexuosa and Asian C. flexuosa. Phylogenetic relationships between the four species we examined, particularly in relationship to flexuous bittercress, were not fully resolved by the molecular evidence generated for this study. New Zealand bittercress is nonnative and does not appear in current keys to the species for the United States. Flexuous bittercress is also an alien species, which appears in some U.S. keys but not in all. To aid nurserymen and botanists in identification of these four closely related bittercress species, a key was developed and is accompanied by detailed descriptions and illustrations.

New Zealand Eriophyoidea (Acari: Prostigmata): an update with descriptions of one new genus and six new species

Zootaxa ◽  
2008 ◽  
Vol 1962 (1) ◽  
pp. 1-32
Author(s):  
XIAO-FENG XUE ◽  
ZHI-QIANG ZHANG
Keyword(s):  
New Species ◽  
New Zealand ◽  
New Record ◽  
New Genus ◽  
New Combinations ◽  
Eriophyoid Mites ◽  
Kunzea Ericoides ◽  
New Distribution ◽  
Leptospermum Scoparium

The New Zealand fauna of Eriophyoidea (Acari: Prostigmata) is updated with a checklist. One new genus, six new species, three new combinations, one new record and some new distribution records of eriophyoid mites from New Zealand are described and illustrated, namely Disella rebeeveri sp. nov. on Kunzea ericoides (Myrtaceae); Cecidophyopsis hendersoni (Keifer, 1954), rec. nov. on Yucca glauca and Y. elephantipes (Agavaceae); Nameriophyes sapidae gen. nov. & sp. nov. on Rhopalostylis sapida (Palmae); Eriophyes bennetti sp. nov. on Fuchsia excorticata (Onagraceae); Eriophyes georgeae sp. nov. on Brachyglottis elaeagnifolia (Asteraceae); Aceria flynni sp. nov. on Kunzea ericoides (Myrtaceae); Aculops propinquae (Manson, 1984), comb. nov. on Coprosma propinqua (Rubiaceae); Aculus corynocarpi (Manson, 1984), comb. nov. on Corynocarpus laevigatus (Corynocarpaceae); Aculus heatherae (Manson, 1984), comb. nov. on Raukaua simplex (Araliaceae), Leptospermum scoparium (Myrtaceae) and Syzygium maire (Myrtaceae); Aculus lalithi sp. nov. on Melicope ternate (Rutaceae). A key to the New Zealand species of Eriophyes is provided.

The origin of methylglyoxal in New Zealand manuka (Leptospermum scoparium) honey

2009 ◽  
Vol 344 (8) ◽  
pp. 1050-1053 ◽  
Author(s):  
Christopher J. Adams ◽  
Merilyn Manley-Harris ◽  
Peter C. Molan
Keyword(s):  
New Zealand ◽  
Leptospermum Scoparium

scholarly journals At home with New Zealand in the 1960s

2021 ◽  
Author(s):  
◽  
Richard Thomson
Keyword(s):  
New Zealand ◽  
Cultural Landscape ◽  
Cultural Practice ◽  
Second World War ◽  
Advanced Technology ◽  
World War ◽  
European Settlement ◽  
The Gift ◽  
Second World ◽  
At Home

<p>Published by A H & A W Reed to immediate success late in 1961, New Zealand in Colour was the first of many large-format books of colour photographs of New Zealand. While they belonged to a tradition of scenic reproduction as old as European settlement, technological changes and the social and economic disruptions of the Second World War intensified the importance of the image in print culture. Drawing on recent historiographic approaches that seek to decentre New Zealand across transnational and city-hinterland relationships, this thesis argues that reproduction, through photography but also as a cultural practice, was intrinsic to a Pakeha conception of place. Looking at scenery was an activity thought to be peculiarly suited to New Zealand, but it was also a prime form of tourist consumption and was therefore essential to New Zealanders’ successful participation in modernity, which required ‘seeing ourselves’ but also awareness of recognition from other moderns. During the decades after the Second World War, modernity took on a more international character with greater mobility of people and goods and a strengthening consumer culture. The complex kinds of looking involved in being modern were increasingly expressed as a tension between modern and anti-modern impulses. The colour pictorial displayed New Zealand as a cultural landscape of cameras, cars, and holidays, but also as a refuge from modernity. The ‘coffee table book’ was a luxury consumer object of advanced technology, but the gift was the preferred method for its circulation. To be at home with this New Zealand may require a move to the suburbs, but it offers a view of nation and nationalism in which mobility, leisure, and consumption have become the chief explanatory tools.</p>

scholarly journals Historical distribution data of New Zealand endemic families Callaeidae and Notiomystidae (Aves, Passeriformes)

Check List ◽  
2019 ◽  
Vol 15 (4) ◽  
pp. 701-727 ◽  
Author(s):  
Rodrigo Brincalepe Salvador ◽  
Barbara Mizumo Tomotani ◽  
Colin Miskelly ◽  
Susan M. Waugh
Keyword(s):  
New Zealand ◽  
Future Research ◽  
Distribution Data ◽  
Museum Specimens ◽  
Critical Periods ◽  
Human Settlement ◽  
Late 19Th Century ◽  
European Settlement ◽  
Historical Distribution ◽  
Notiomystis Cincta

Callaeidae (wattlebirds) and Notiomystidae (stitchbirds) are New Zealand-endemic sister-taxa; while widespread before human settlement, they subsequently became critically endangered or extinct. Aside from presently managed populations, information about them is scarce and actual specimens even scarcer. Herein, we provide a snapshot of these families’ historical distribution during the critical periods of European settlement and expansion in New Zealand (19th and early-20th centuries), exploring new data and insights resulting from this approach. We include an extensive catalogue of worldwide museum specimens to facilitate future research. We report the last known record/specimen of huia Heteralocha acutirostris (Gould, 1837) and late 19th century specimens of North Island saddleback Philesturnus rufusater (Lesson, 1828) from Cuvier Island that confirm its occurrence there. We failed to find specimens of North Island saddleback and stitchbird Notiomystis cincta (du Bus de Gisignies, 1839) (with one and two exceptions, respectively) from named locations on the mainland.

Riethia (Kieffer 1917) (Diptera: Chironomidae) revised for the Austro-Pacific region

Zootaxa ◽  
2019 ◽  
Vol 4646 (3) ◽  
pp. 461-500 ◽  
Author(s):  
PETER S. CRANSTON
Keyword(s):  
New Zealand ◽  
Adult Male ◽  
New Caledonia ◽  
Molecular Data ◽  
Molecular Evidence ◽  
Pacific Region ◽  
South American Species ◽  
Standing Waters ◽  
Flowing Waters ◽  
Male Pupa

Riethia Kieffer, known previously from New Zealand for a species stated to be also in Australia plus several Australian and South American species, is revised for the Austro-Pacific region. The three previously-described Australian species Riethia stictoptera Kieffer (the genotype), Riethia cinctipes Freeman and Riethia plumosa Freeman are distinct and valid, and are redescribed in all stages. In contrast, Riethia zeylandica Freeman now is restricted to New Zealand: Australian specimens previously allocated to R. zeylandica belong to several new species recognised on morphology of adult male, pupa and larva, with guidance from molecular data. Most belong to a widespread eastern Australian Riethia azeylandica sp. n.: others are allocated to Riethia hamodivisa sp. n., Riethia paluma sp. n., Riethia phengari sp. n. and Riethia queenslandensis sp. n., each with a more restricted range. From Western Australia three species, Riethia donedwardi sp. n., Riethia noongar sp. n. and Riethia wazeylandica sp. n., are described as new from adult male, pupa and larva. Riethia kakadu sp. n. is described from the monsoonal tropics of Northern Territory from the adult male and tentatively associated pupa. From New Caledonia a reared species is described as Riethia neocaledonica sp. n.. Illustrated identification keys are provided for the males, pupae and larvae. Unassociated larvae that key to reared described species are excluded from type status, and based on morphology and molecular evidence three unreared larval types, ‘A’, ‘B’ and ‘C’, are also described and keyed. Previously reported molecular vouchers are reviewed, and certain Genbank accessions re-identified. Extensive data shows Riethia are distributed almost throughout Australia from standing and flowing waters, from tropics and subtropics to cool temperate Tasmania, but probably only in permanent and standing waters. The immature stages of several taxa can co-occur: as many as four can be found simultaneously in one site. Terminology of the volsellae of the male genitalia and the dorsal head and maxilla of the larva is reviewed. 

Genetic variation in Trithuria inconspicua and T. filamentosa (Hydatellaceae): a new subspecies and a hypothesis of apomixis arising within a predominantly selfing lineage

2019 ◽  
Author(s):  
Rob D. Smissen ◽  
Kerry A. Ford ◽  
Paul D. Champion ◽  
Peter B. Heenan
Keyword(s):  
Genetic Variation ◽  
New Zealand ◽  
Morphological Variation ◽  
Genetic Distances ◽  
Herbarium Specimens ◽  
Minimum Evolution ◽  
The North ◽  
Genetic Groups ◽  
Morphological Differences ◽  
High Level

While examining herbarium specimens of Trithuria inconspicua Cheeseman, we observed differences in the stigmatic hairs among plants from New Zealand’s North and South Islands. This motivated us to assess genetic and morphological variation within this species and its sister T. filamentosa Rodway from Tasmania. Samples were collected from lakes in the three disjunct geographic areas where the two species occur. Genetic variation in both species was assessed with simple sequence-repeat (SSR, microsatellite) markers and analyses of genetic distances. We also compared the morphology of northern and southern New Zealand T. inconspicua using fresh material. Samples of each species clustered together in a minimum evolution tree built from genetic distances. Trithuria filamentosa had more genetic diversity than did T. inconspicua. Within T. inconspicua, plants from lakes in the North Island and the South Island formed discrete genetic groups diagnosable by subtle morphological differences. Low levels of heterozygosity in both species are consistent with a high level of selfing, as suggested for other co-sexual Trithuria species, but unusual for a putative apomict. On the basis of genetic and morphological variation, we propose recognition of the northern New Zealand and southern New Zealand lineages of T. inconspicua at subspecies rank.

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