Title:	SNP data of Pinus contorta
DNr:	NAISS 2025/22-53
Project Type:	NAISS Small Compute
Principal Investigator:	Ruirui Zhao <ruirui.zhao@slu.se>
Affiliation:	Sveriges lantbruksuniversitet
Duration:	2025-01-21 – 2026-02-01
Classification:	10611
Keywords:

Abstract

Pinus contorta was widely introduced from North America (Canada and the USA) to New Zealand and Patagonia in the 1970s and normally has higher productivity in introduced regions than in their native regions. Further, Pinus contorta has invaded in these introduced regions. We already know there are four subspecies of Pinus contorta in its native region, but which subspecies was introduced to each introduced region is unclear. In 2017, SNP data of pine needles were collected from both native and introduced regions, as well as the invasion fronts. We aimed to study: (1) the source provenance of Pinus contorta in New Zealand and Patagonia; (2) Whether genetic drift or other processes occurred during Pinus contorta's spread in the introduced areas; and (3) whether populations with similar genotypes also have similar climatic conditions. To analyze this, we need to check how many genetic clusters are there in pinus contorta's native regions, then conduct an ancestry composition analysis of both introduced and invasive individuals. Based on this analysis, we will learn the genetic changes both after a large-scale introduction and a local-scale invasion of Pinus contorta.