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.

Ko ngā ingoa Linnaean ka noho hei pou mō te pārongo e pā ana ki ngā momo koiora. He mea nui rawa kia mārama, kia ahurei hoki ngā ingoa pūnaha whakarōpū. Me pēnei kia taea ai te whakawhitiwhiti kōrero ā-pūtaiao nei. Nā tēnā kua āta whakatakotohia ētahi ture, tohu ārahi hoki hei whakahaere i ngā whakamārama pūnaha whakarōpū. Kua whakamanahia ēnei kia noho hei tikanga mō te ao pūnaha whakarōpū. Heoi, arā noa atu ngā hua o te tukanga waihanga ingoa Linnaean mō ngā momo koiora i tua atu i te tautohu noa i ngā momo koiora. Ko tētahi o aua hua ko te whakarau: (1) i te mātauranga o ngā iwi takatake, (2) i te kōrero rānei mai i te iwi o te rohe, (3) i ngā kōrero pūrākau rānei mō te wāhi whenua. Kei te piki haere tēnei āhua whakamahinga hei āwhina kia whakamanahia ngā iwi taketake i roto i te mahi pūnaha whakarōpū. Nā tēnā ka whakamanawahia te iwi i runga i tōna mōhio he hoa-rangapū ia i roto i te mahi whiriwhiri ingoa kōrero pūrākau. Kua roa noa atu a Aotearoa e whakamahi ana i te reo taketake o Aotearoa / Rēkohu rānei i roto i te mahi whakamārama pūnaha whakarōpū. Engari ahakoa tērā, kāore i te pērā rawa te kaha o te ao pūnaha whakarōpū ki te whakapiri mai ki ngā iwi taketake i roto i tēnei tukanga. Kei roto i te rangahau nei i arotakengia ngā tau ki muri, me te aha, ko tōna kitenga e pēnei na: mai i tau 1830, neke atu i te 1,288 ngā wā kua whakamahia te reo Māori, te reo Moriori rānei i roto i te pūnaha whakarōpū. Kei te piki haere hoki tēnei tatauranga. Ko tētahi kitenga o te arotake nei, ko te tohu atu i ētahi āhuatanga whakamahi i te reo Māori, reo Moriori hoki. Hei tauira: (1) ngā momo whakarerekētanga whakamahi o ngā kupu "Māori, Moriori" rānei hei tohu atu tērā i ahu mai tēnā momo koiora mai i Aotearoa. (2) ngā ingoa kōrero pūrākau Māori / Moriori mō ngā momo koiora; (3) ngā ingoa whenua Māori / Moriori hoki e whai hononga ana ki ngā momo koiora (4) ētahi ingoa whakamārama i hangaia mai i ngā kupu Māori / Moriori hoki me (5) ētahi ingoa hou kua whakaarahia e te iwi e mahi ngātahi nei ki te taha o ngā kaipūnaha whakarōpū. Ko tā mātou nei, he arotahi he tautoko hoki i te tuarima o ēnei āhuatanga. He pūnaha mahi ngātahi tēnei hei whakamārama i ngā momo koiora. Ka pēnei mā te āta titiro ki ētahi tauira. Ko ēnei tauira ka whakamiramira i ngā huanga me ngā uauatanga o tēnei pūnaha mahi ngātahi hei whakamārama i ngā momo koiora. Ka tuku āwhina hoki mātou hei ārahi i ngā kaipūnaha whakarōpū kia pai ake te whakapiri atu ki te iwi mō te whakamārama momo koiora. Ka mātua matapakihia ngā take e pā ana ki te "whakarōmahanga" o ētahi kupu Māori, te whakamahinga o te tohutō, me te hiranga hoki kia whakapiri atu ki te iwi mā te roanga atu o te tukanga whakaingoa. Ko tā mātou hoki e tohutohu nei kia kohia katoatia ngā ingoa reo Māori, reo Moriori hoki kia noho hei rārangi tohutoro mō te wā anamata hei ārahi i te whakamahinga, hei hanga pātengi raraunga hoki mō Aotearoa. Ko tēnei pātengi raraunga me māmā te tomo atu, me wātea hoki hei rauemi whakamahi mā te kaiarangahau.

Kua wetekia te hunga rangatahi i te ao tūroa ki tō ngā tūpuna, ngā mātua ō mua. He noho tāone e tupungia ai e te taupori o te ao, ā, ko te nohoanga Māori te wheakoranga e mate haere ana. I te tau 2018, i whakahaerehia e mātou ngā papamahi e 8 ki ngā tauira 13 ki te 17 tau te pakeke nō ngā Wharekura e rua kia whakatōmenehia te whakatinana o te mahere Cultural Monitoring. Ahakoa i whai hua te urunga o te Cultural Monitoring i roto i ngaa papamahi pūnaha hauropi, he wero nui kia mārama ai ki te pokapū o te reo hauropi. Ka pupuke ake te hihiri mō te mātauranga taiao me te hauropi i te huringa o ngā akoranga ki te ao ake o rātou mā, arā, ko te ao hangarau, ko te ao matihiko, ko te ao kēmuranga. I whakamātauria ngēnei akoranga hangarau hei whakahihiko i ngā whanonga taiao kia pupū ake ai te reo o te taiao, te mātauranga Māori hei tautoko i te hononga ki te whenua, ki te ao tūroa. I roto i tēnei whakākoranga i waihangatia tētehi kēmu tūāpapa e pā ana ki te hauropi o Aotearoa. Ko Eko te ingoa o te kēmu nei. He kēmu e tuitui ana i te tuāpapa o te ariā hauropi ki te Mātauranga Māori kia whānui ake te maaramatanga ki te taiao. Ko te mānuka kei mua i te aroaro o ngā rangatahi me te ao tūroa, ko te whakatōmene i te āputa o te taiao, te hangarau me te Mātauranga Māori. I roto i ngā raraunga, ko te 90% o ngā ākonga i ngākau hihiko, ngahau mai ai ki te kēmu, ā, ko te 65% i mau, i whiwhi i ngā akoranga hōu. I whakakitea e mātou, ahakoa e tupu mai ana te mate wheakoranga o te nohoanga Māori huri noa i te ao, ko te ao hangarau pea te huarahi hei whai kia tupu te toi, kia ora te toi i roto i te reo hauropi, Mātauranga Māori, me ngā whanonga taiao. Nā runga anō i ngēnei kōrero, me akiaki te tangata ki te whakatoōene i te auahatanga o te ao hangarau hei hua torowhānui i te tuituinga o te hunga rangatahi ki te ao Tūroa.

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.

No abstract