The Evolutionary History of New Zealand Deschampsia Is Marked by Long-Distance Dispersal, Endemism, and Hybridization

Author:

Xue Zhiqing,Greimler Josef,Paun OvidiuORCID,Ford Kerry A.,Barfuss Michael H. J.ORCID,Chiapella Jorge O.ORCID

Abstract

The contrasting evolutionary histories of endemic versus related cosmopolitan species provide avenues to understand the spatial drivers and limitations of biodiversity. Here, we investigated the evolutionary history of three New Zealand endemic Deschampsia species, and how they are related to cosmopolitan D. cespitosa. We used RADseq to test species delimitations, infer a dated species tree, and investigate gene flow patterns between the New Zealand endemics and the D. cespitosa populations of New Zealand, Australia and Korea. Whole plastid DNA analysis was performed on a larger worldwide sampling. Morphometrics of selected characters were applied to New Zealand sampling. Our RADseq review of over 55 Mbp showed the endemics as genetically well-defined from each other. Their last common ancestor with D. cespitosa lived during the last ten MY. The New Zealand D. cespitosa appears in a clade with Australian and Korean samples. Whole plastid DNA analysis revealed the endemics as members of a southern hemisphere clade, excluding the extant D. cespitosa of New Zealand. Both data provided strong evidence for hybridization between D. cespitosa and D. chapmanii. Our findings provide evidence for at least two migration events of the genus Deschampsia to New Zealand and hybridization between D. cespitosa and endemic taxa.

Funder

Austrian Science Fund

the China Scholarship Council

Publisher

MDPI AG

Subject

General Agricultural and Biological Sciences,General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology

Reference92 articles.

1. The Vegetation of New Zealand-Die Vegetation der Erde XIV;Cockayne,1928

2. The geological history of New Zealand and its biota;Fleming,1975

3. New Zealand late Cretaceous and cenozoic plant biogeography: A contribution

4. The New Zealand Flora-Entirely Long-Distance Dispersal?

5. Comment on M. Pole (1994): ‘The New Zealand flora–entirely long-distance dispersal?’;Macphail;J. Biogeogr.,1997

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