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Introgression between ecologically distinct species following increased salinity in the Colorado Delta- Worldwide implications for impacted estuary diversity

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Preprint: Introgression between ecologically distinct species following increased salinity in the Colorado Delta https://t.co/yCTKQkWwV5 https://t.co/fxsykdIWAv
New study examines effects of water diversions on hybridization & introgression among species in the Colorado Delta https://t.co/sJ2t79pEmt
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Supplemental Information

Radiographs of vertebral differences

Fig. S1 Radiographs of a C. hubbsi specimen (A) and a C. regis specimen (B); arrow in (B) shows the expanded process in the hemal spines of C. regis.

DOI: 10.7287/peerj.preprints.3281v1/supp-1

STRUCTURE assignment of individuals to groups (K=3 and K=4)

Fig. S2 Structure plots for the correlated allele frequency model for K=3 (top) and K=4 (bottom).

DOI: 10.7287/peerj.preprints.3281v1/supp-2

Boxplots of the DAPC coordinates for specimens in the hybrid zone

Fig. S3 Boxplots of the DAPC coordinates for specimens in the hybrid zone

DOI: 10.7287/peerj.preprints.3281v1/supp-3

External morphological measurements of a historic collection of Colpichthys

Table S1 Measurements of the external morphology of C. regis specimens collected in 1968 at the San Felipe site. SL = standard length; Snout-D1 = length from snout to first dorsal fin origin; DLS = dorsolateral scale count. Measurements for specimen 16 (in bold) identify it as C. hubbsi sensu Crabtree (1989). Specimens on loan from the Scripps Institute of Oceanography (SIO) collection.

DOI: 10.7287/peerj.preprints.3281v1/supp-4

Microsatellite allele frequencies

Table S2 Frequencies of each microsatellite alleles at each sampling locale. Microsatellite alleles are arranged by size. Number in parentheses under each locale denotes number of individuals analyzed.

DOI: 10.7287/peerj.preprints.3281v1/supp-5

Description of raw data formats

Description of raw data formats

DOI: 10.7287/peerj.preprints.3281v1/supp-6

Morphological data

Morphological data

DOI: 10.7287/peerj.preprints.3281v1/supp-7

Microsatellite data

Microsatellite data

DOI: 10.7287/peerj.preprints.3281v1/supp-8

RAG1 sequence data

RAG1 sequence data

DOI: 10.7287/peerj.preprints.3281v1/supp-9

C. regis Cyt b sequence data

C. regis Cyt b sequence data

DOI: 10.7287/peerj.preprints.3281v1/supp-10

C. hubbsi Cyt b sequence data

C. hubbsi Cyt b sequence data

DOI: 10.7287/peerj.preprints.3281v1/supp-11

Vertebral data

Vertebral data

DOI: 10.7287/peerj.preprints.3281v1/supp-12

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Clive L.F. Lau conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

David K. Jacobs conceived and designed the experiments, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Field Study Permissions

The following information was supplied relating to field study approvals (i.e., approving body and any reference numbers):

Collections were under Mexican federal collecting permit (Permiso de Pesca de Fomento) DGOPA 14253. 101005.6950, and its extension DGOPA 06435.210606.2640, issued to Findley and Jacobs by the Comisión Nacional de Acuacultura y Pesca of the Secretaría de Agricultura, Gana- dería, Desarrollo Rural, Pesca y Alimentación (SAGARPA).

DNA Deposition

The following information was supplied regarding the deposition of DNA sequences:

Data are included as a supplemental file and will be uploaded.

Data Deposition

The following information was supplied regarding data availability:

Code is posted on GITHUB

https://github.com/clflau/Colpichthys_github/

Funding

The authors received no funding for this work.


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