Little Adaptive Potential in a Threatened Passerine Bird

Current Biology : CB
Pierre de VillemereuilAnna W Santure

Abstract

Threatened species face numerous threats, including future challenges triggered by global change. A possible way to cope with these challenges is through adaptive evolution, which requires adaptive potential. Adaptive potential is defined as the genetic variance needed to respond to selection and can be assessed either on adaptive traits or fitness [1]. However, a lack of high-quality data has made it difficult to rigorously test adaptive potential in threatened species, leading to controversy over its magnitude [1-3]. Here we assess the adaptive potential of a threatened New Zealand passerine (the hihi, Notiomystis cincta) based on two populations: (1) the sole remaining natural population, on the island of Te Hauturu-o-Toi, and (2) a reintroduced population with a long-term dataset (intensively monitored for 20 years) based on the island of Tiritiri Matangi. We use molecular information (reduced representation genome sequencing, on both populations), as well as long-term phenotypic and fitness data from the Tiritiri Matangi population, to find (1) a lack of molecular genetic diversity at a genome-wide level in both populations, (2) low heritability of traits under selection and (3) negligible additive genetic variance of fitn...Continue Reading

Citations

Mar 5, 2020·Proceedings. Biological Sciences·Elisa G DierickxSimon H Martin
Feb 15, 2020·Evolution Letters·Ann-Marie WaldvogelMarkus Pfenninger
Aug 23, 2019·Evolution; International Journal of Organic Evolution·Mason W KulbabaRuth G Shaw
Nov 5, 2020·Molecular Ecology·Paul A HohenloheOm P Rajora
Jan 19, 2021·Molecular Ecology·Oscar VedderSandra Bouwhuis
Feb 5, 2021·Molecular Ecology Resources·Annabel Whibley
Jun 29, 2021·Evolutionary Applications·Samarth Mathur, J Andrew DeWoody
Jun 30, 2021·Evolution; International Journal of Organic Evolution·Kasha StricklandCéline H Frère
Sep 21, 2021·G3 : Genes - Genomes - Genetics·Yasmin FosterBruce C Robertson
Sep 24, 2021·Molecular Ecology·Stephanie J GallaTammy E Steeves
Oct 21, 2021·Journal of Evolutionary Biology·Juliette BiquetCéline Teplitsky
Nov 14, 2021·Proceedings of the National Academy of Sciences of the United States of America·Marty KardosW Chris Funk
Dec 16, 2021·Molecular Ecology Resources·Laura DuntschAnna W Santure

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