scholarly journals Genome-wide patterns of genetic diversity, population structure and demographic history in mānuka (Leptospermum scoparium) grown on indigenous Māori land

2021 ◽  
Author(s):  
Emily Koot ◽  
Elise Arnst ◽  
Melissa Taane ◽  
Kelsey Goldsmith ◽  
Peri Tobias ◽  
...  
Keyword(s):  
New Zealand ◽  
Demographic History ◽  
Gene Pools ◽  
Phylogenetic Studies ◽  
Aotearoa New Zealand ◽  
Genome Wide ◽  
History Of ◽  
Demographic Modelling ◽  
Management And Conservation ◽  
Leptospermum Scoparium

Leptospermum scoparium J. R. Forst et G. Forst, known as mānuka by Māori, the indigenous people of Aotearoa (New Zealand), is a culturally and economically significant shrub species, native to New Zealand and Australia. Chemical, morphological and phylogenetic studies have indicated geographical variation of mānuka across its range in New Zealand, and genetic differentiation between New Zealand and Australia. We used pooled whole genome re-sequencing of 76 L. scoparium and outgroup populations from New Zealand and Australia to compile a dataset totalling ~2.5 million SNPs. We explored the genetic structure and relatedness of L. scoparium across New Zealand, and between populations in New Zealand and Australia, as well as the complex demographic history of this species. Our population genomic investigation suggests there are five geographically distinct mānuka gene pools within New Zealand, with evidence of gene flow occurring between these pools. Demographic modelling suggests three of these gene pools have undergone expansion events, whilst the evolutionary histories of the remaining two have been subjected to contractions. Furthermore, mānuka populations in New Zealand are genetically distinct from populations in Australia, with coalescent modelling suggesting these two clades diverged ~9 –12 million years ago. We discuss the evolutionary history of this species and the benefits of using pool-seq for such studies. Our research will support the management and conservation of mānuka by landowners, particularly Māori, and the development of a provenance story for the branding of mānuka based products.

scholarly journals Genome-wide patterns of genetic diversity, population structure and demographic history in mānuka (Leptospermum scoparium) grown on indigenous Māori land

2021 ◽  
Author(s):  
Emily Koot ◽  
Elise Arnst ◽  
Melissa Taane ◽  
Kelsey Goldsmith ◽  
Eleanor Dormontt ◽  
...  
Keyword(s):  
New Zealand ◽  
Demographic History ◽  
Gene Pools ◽  
Phylogenetic Studies ◽  
Aotearoa New Zealand ◽  
Genome Wide ◽  
History Of ◽  
Demographic Modelling ◽  
Management And Conservation ◽  
Leptospermum Scoparium

Leptospermum scoparium J. R. Forst et G. Forst, known as mānuka by Māori, the indigenous people of Aotearoa (New Zealand), is a culturally and economically significant shrub species, native to New Zealand and Australia. Chemical, morphological and phylogenetic studies have indicated geographical variation of mānuka across its range in New Zealand, and genetic differentiation between New Zealand and Australia. We used pooled whole genome re-sequencing of 76 L. scoparium and outgroup populations from New Zealand and Australia to compile a dataset totalling ~2.5 million SNPs. We explored the genetic structure and relatedness of L. scoparium across New Zealand, and between populations in New Zealand and Australia, as well as the complex demographic history of this species. Our population genomic investigation suggests there are five geographically distinct mānuka gene pools within New Zealand, with evidence of gene flow occurring between these pools. Demographic modelling suggests three of these gene pools have undergone expansion events, whilst the evolutionary histories of the remaining two have been subjected to contractions. Furthermore, mānuka populations in New Zealand are genetically distinct from populations in Australia, with coalescent modelling suggesting these two clades diverged ~9 –12 million years ago. We discuss the evolutionary history of this species and the benefits of using pool-seq for such studies. Our research will support the management and conservation of mānuka by landowners, particularly Māori, and the development of a provenance story for the branding of mānuka based products.

scholarly journals Genomic and geographic footprints of differential introgression between two highly divergent fish species

2017 ◽  
Author(s):  
Ahmed Souissi ◽  
François Bonhomme ◽  
Manuel Manchado ◽  
Lilia Bahri-Sfar ◽  
Pierre-Alexandre Gagnaire
Keyword(s):  
Gene Flow ◽  
Hybrid Zone ◽  
Demographic History ◽  
Genetic Interactions ◽  
Solea Senegalensis ◽  
Integrative Approach ◽  
Gene Pools ◽  
Mediterranean Populations ◽  
Genome Wide ◽  
History Of

AbstractInvestigating variation in gene flow across the genome between closely related species is important to understand how reproductive isolation builds up during the speciation process. An efficient way to characterize differential gene flow is to study how the genetic interactions that take place in hybrid zones selectively filter gene exchange between species, leading to heterogeneous genome divergence. In the present study, genome-wide divergence and introgression patterns were investigated between two sole species, Solea senegalensis and Solea aegyptiaca, using a restriction-associated DNA sequencing (RAD-Seq) approach to analyze samples taken from a transect spanning the hybrid zone. An integrative approach combining geographic and genomic clines methods with an analysis of individual locus introgression taking into account the demographic history of divergence inferred from the joint allele frequency spectrum was conducted. Our results showed that only a minor fraction of the genome can still substantially introgress between the two species due to genome-wide congealing. We found multiple evidence for a preferential direction of introgression in the S. aegyptiaca genetic background, indicating a possible recent or ongoing movement of the hybrid zone. Deviant introgression signals found in the opposite direction supported that the Mediterranean populations of S. senegalensis could have benefited from adaptive introgression. Our study thus illustrates the varied outcomes of genetic interactions between divergent gene pools that recently met after a long history of divergence.

scholarly journals Ancient genomic time transect from the Central Asian Steppe unravels the history of the Scythians

2021 ◽  
Vol 7 (13) ◽  
pp. eabe4414
Author(s):  
Guido Alberto Gnecchi-Ruscone ◽  
Elmira Khussainova ◽  
Nurzhibek Kahbatkyzy ◽  
Lyazzat Musralina ◽  
Maria A. Spyrou ◽  
...  
Keyword(s):  
Bronze Age ◽  
Iron Age ◽  
Gene Pools ◽  
Social Rules ◽  
Eurasian Steppe ◽  
Central Asian ◽  
Genome Wide ◽  
Genome Wide Data ◽  
History Of ◽  
First Millennium

The Scythians were a multitude of horse-warrior nomad cultures dwelling in the Eurasian steppe during the first millennium BCE. Because of the lack of first-hand written records, little is known about the origins and relations among the different cultures. To address these questions, we produced genome-wide data for 111 ancient individuals retrieved from 39 archaeological sites from the first millennia BCE and CE across the Central Asian Steppe. We uncovered major admixture events in the Late Bronze Age forming the genetic substratum for two main Iron Age gene-pools emerging around the Altai and the Urals respectively. Their demise was mirrored by new genetic turnovers, linked to the spread of the eastern nomad empires in the first centuries CE. Compared to the high genetic heterogeneity of the past, the homogenization of the present-day Kazakhs gene pool is notable, likely a result of 400 years of strict exogamous social rules.

Ka mura ka muri: understandings of organ donation and transplantation in Aotearoa New Zealand

2021 ◽  
pp. medhum-2020-012038
Author(s):  
Rhonda Shaw ◽  
Robert Webb
Keyword(s):  
New Zealand ◽  
Organ Donation ◽  
Well Being ◽  
The Body ◽  
Cultural Meanings ◽  
Aotearoa New Zealand ◽  
Values And Beliefs ◽  
History Of ◽  
Research Findings ◽  
Interview Studies

In this article, we refer to the separation of solid organs from the body as bio-objects. We suggest that the transfer of these bio-objects is connected to emotions and affects that carry a range of different social and cultural meanings specific to the context of Aotearoa New Zealand. The discussion draws on research findings from a series of qualitative indepth interview studies conducted from 2008 to 2013 with Māori (the Indigenous people of Aotearoa New Zealand) and Pākehā (European settler New Zealanders) concerning their views on organ donation and transplantation. Our findings show both differences and similarities between Māori and Pākehā understandings of transplantation. Nevertheless, while many Māori draw on traditional principles, values and beliefs to reflect on their experiences in relation to embodiment, gift-giving, identity and well-being, Pākehā tend to subscribe to more Western understandings of identity in terms of health and well-being, in line with international literature on the topic. Rather than reflecting individualistic notions of the body and transplantation as the endpoint of healthcare as do Pākehā, Māori views are linked to wider conceptions of family, ancestry and belonging, demonstrating how different rationalities and ontologies affect practices and understandings surrounding organ transfer technology. In the article, we focus predominantly on Māori perspectives of organ transfer, contextualising the accounts and experiences of our research participants against the backdrop of a long history of settler colonialism and health inequalities in Aotearoa New Zealand.

Indigenous Peoples

2016 ◽  
Author(s):  
Jenny Te Paa-Daniel
Keyword(s):  
New Zealand ◽  
Indigenous Peoples ◽  
Anglican Church ◽  
Aotearoa New Zealand ◽  
Treaty Of Waitangi ◽  
History Of ◽  
The Creation ◽  
The Relationship ◽  
Constitutional Revision

In 1992 the Anglican Church in Aotearoa New Zealand and Polynesia, which owed its origin ultimately to the work of Samuel Marsden and other missionaries, undertook a globally unprecedented project to redeem its inglorious colonial past, especially with respect to its treatment of indigenous Maori Anglicans. In this chapter Te Paa Daniel, an indigenous Anglican laywoman, explores the history of her Provincial Church in the Antipodes, outlining the facts of history, including the relationship with the Treaty of Waitangi, the period under Selwyn’s leadership, as experienced and understood from the perspective of Maori Anglicans. The chapter thus brings into view the events that informed and influenced the radical and globally unprecedented Constitutional Revision of 1992 which saw the creation of the partnership between different cultural jurisdictions (tikanga).

scholarly journals Another elderly lady to be knocked down: Heritage discourse and the protest to save the Missions to Seamen building, 1986

2021 ◽  
Author(s):  
◽  
Alexander Gordon
Keyword(s):  
New Zealand ◽  
City Council ◽  
Historical Case Study ◽  
Historical Case ◽  
Considerable Difficulty ◽  
Documentary Sources ◽  
Aotearoa New Zealand ◽  
History Of ◽  
Heritage Discourse

<p>Through a specific historical case study, Another Elderly Lady to be Knocked Down applies discourse theory and the Authorised Heritage Discourse (AHD) to the context of urban built heritage in Aotearoa New Zealand. Previously, only limited work had been done in this area. By examining an underexplored event this dissertation fills two gaps in present literature: the history of the event itself and identification of the heritage discourses in the country at the time. Examination of these discourses in context also allows conclusions about the use of the AHD in similar studies to be critically examined.  In 1986 the Missions to Seamen building in Wellington, New Zealand, was threatened with demolition by its government owners. In a remarkable display of popular sentiment, individuals, organisations, the Wellington City Council (WCC) and the New Zealand Historic Places Trust (NZHPT) worked together to oppose this unpopular decision. This protest was a seminal event in the history of heritage in New Zealand.  This study relies upon documentary sources, especially the archival records of the Historic Places Trust and the State Services Commission, who owned the building, to provide the history of this watershed moment in New Zealand’s preservation movement. The prevalent attitudes of different groups in Wellington are examined through the letters of protest they wrote at the time. When analysed in context, these discourses reveal the ways in which heritage was articulated and constructed.  The course of this dissertation has revealed the difficulty of identifying an AHD in this context. The level of collaboration between ‘official’ and ‘unofficial’ heritage perspectives, and the extent to which they shaped each other’s language, creates considerable difficulty in distinguishing between discreet discourses. To better explore the ways that heritage meaning is constructed and articulated, heritage must be recognised as a complex dynamic process.</p>

scholarly journals EXPLORING FRAMEWORKS FOR A HISTORY OF EARTH BUILDING IN AOTEAROA NEW ZEALAND

2020 ◽  
Vol XLIV-M-1-2020 ◽  
pp. 969-976
Author(s):  
M. Hall
Keyword(s):  
New Zealand ◽  
Standard Form ◽  
First Century ◽  
World War Two ◽  
World War ◽  
Structural Hierarchy ◽  
Aotearoa New Zealand ◽  
History Of ◽  
Detailed Record ◽  
Complete History

Abstract. Aotearoa New Zealand has a unique earth building heritage. For centuries, Māori used earth for floors and as a binder for fibrous walling materials. When settlers arrived in the nineteenth century, they brought earth building techniques with them, and in the early days of colonisation, earth buildings were commonplace. Many still survive, but as processed timber became readily available, building in earth declined; by the middle of the twentieth century it had almost ceased. Following renewed interest after World War Two, earth building continued into the twenty-first century, albeit as a non-standard form of construction. Databases compiled by Heritage New Zealand, Miles Allen, and the author, supplemented by accounts from a variety of sources, provide a relatively detailed record of earth buildings from all over Aotearoa but no cohesive history has yet been written. This paper considers possible approaches to writing such a history. Methodologies employed in local and international architectural histories are analysed, and a number of structural hierarchies are identified: for instance, Ronald Rael organises his material firstly by technique and then chronology in Earth Architecture, while Ted Howard uses location and then chronology for his Australasian history, Mud and Man. Information from New Zealand sources is then applied to these frameworks to arrive at an appropriate structural hierarchy for a complete history of earth building in Aotearoa.

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