Limited population structure but signals of recent selection in introduced African Fig Fly (Zaprionus indianus) in North America

Invasive species have devastating consequences for human health, food security, and the environment. Many invasive species adapt to new ecological niches following invasion, but little is known about the early steps of adaptation. Here, we examine the population genomics of a recently introduced drosophilid in North America, the African Fig Fly, Zaprionus indianus. This species is likely intolerant of subfreezing temperatures and recolonizes temperate environments yearly. We generated a new chromosome-level genome assembly for Z. indianus. Using resequencing of over 200 North American individuals collected over four years in temperate Virginia, plus a single collection from subtropical Florida, we tested for signatures of population structure and adaptation within invasive populations. We show that founding populations are sometimes small and contain close genetic relatives, yet temporal population structure and differentiation of populations are mostly absent across North America. Howe..., This dataset contains processed data from whole-genome sequencing of over 200 Zaprionus indianus fruit flies from North America. Reads were mapped to a new genome assembly, and SNPs were called with GATK. , , # Data from: Limited population structure but signals of recent selection in introduced African Fig Fly (Zaprionus indianus) in North America

[https://doi.org/10.5061/dryad.q2bvq83v3](https://doi.org/10.5061/dryad.q2bvq83v3)

## Description of the data and file structure

This dataset contains data related to *Zaprionus indianus* (African fig fly) individuals that were collected from the wild and sequenced with Illumina short read sequencing.

### Files and variables

#### File: zap_full_info_updated_v2.csv

**Description:** This file contains metadata for the sequencing samples generated in this study and incorporated from other studies. Missing or non-applicable data are indicated with NA.

##### Variables

* sample.id: A unique name for each sample. IDs beginning with \"SRR\" were previously sequenced from Comeault et al 2020 or 2021. IDs beginning with \"ZAP\" were sequenced in this study
* library: The source of the sample. Comeault2020 and Comeault2021 refer to previously publsihed s...,