Genetic and morphological divergence in the warm-water planktonic foraminifera genus Globigerinoides

Raphaël Morard, Angelina Füllberg, Geert Jan A. Brummer, Mattia Greco, Lukas Jonkers, André Wizemann, Agnes K.M. Weiner, Kate Darling, Michael Siccha, Ronan Ledevin, Hiroshi Kitazato, Thibault De Garidel-Thoron, Colomban De Vargas, Michal Kucera

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

The planktonic foraminifera genus Globigerinoides provides a prime example of a speciesrich genus in which genetic and morphological divergence are uncorrelated. To shed light on the evolutionary processes that lead to the present-day diversity of Globigerinoides, we investigated the genetic, ecological and morphological divergence of its constituent species. We assembled a global collection of single-cell barcode sequences and show that the genus consists of eight distinct genetic types organized in five extant morphospecies. Based on morphological evidence, we reassign the species Globoturborotalita tenella to Globigerinoides and amend Globigerinoides ruber by formally proposing two new subspecies, G. ruber albus n.subsp. and G. ruber ruber in order to express their subspecies level distinction and to replace the informal G. ruber "white" and G. ruber "pink", respectively. The genetic types within G. ruber and Globigerinoides elongatus show a combination of endemism and coexistence, with little evidence for ecological differentiation. CT-scanning and ontogeny analysis reveal that the diagnostic differences in adult morphologies could be explained by alterations of the ontogenetic trajectories towards final (reproductive) size. This indicates that heterochrony may have caused the observed decoupling between genetic and morphological diversification within the genus. We find little evidence for environmental forcing of either the genetic or the morphological diversification, which allude to biotic interactions such as symbiosis, as the driver of speciation in Globigerinoides.

Original languageEnglish
Article numbere0225246
Pages (from-to)1-30
Number of pages30
JournalPLoS ONE
Volume14
Issue number12
DOIs
Publication statusPublished - 5 Dec 2019

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Foraminifera
Symbiosis
Trajectories
Scanning
Water
water
new subspecies
barcoding
symbiosis
trajectories
ontogeny
indigenous species
Retaria

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Morard, R., Füllberg, A., Brummer, G. J. A., Greco, M., Jonkers, L., Wizemann, A., ... Kucera, M. (2019). Genetic and morphological divergence in the warm-water planktonic foraminifera genus Globigerinoides. PLoS ONE, 14(12), 1-30. [e0225246]. https://doi.org/10.1371/journal.pone.0225246
Morard, Raphaël ; Füllberg, Angelina ; Brummer, Geert Jan A. ; Greco, Mattia ; Jonkers, Lukas ; Wizemann, André ; Weiner, Agnes K.M. ; Darling, Kate ; Siccha, Michael ; Ledevin, Ronan ; Kitazato, Hiroshi ; De Garidel-Thoron, Thibault ; De Vargas, Colomban ; Kucera, Michal. / Genetic and morphological divergence in the warm-water planktonic foraminifera genus Globigerinoides. In: PLoS ONE. 2019 ; Vol. 14, No. 12. pp. 1-30.
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abstract = "The planktonic foraminifera genus Globigerinoides provides a prime example of a speciesrich genus in which genetic and morphological divergence are uncorrelated. To shed light on the evolutionary processes that lead to the present-day diversity of Globigerinoides, we investigated the genetic, ecological and morphological divergence of its constituent species. We assembled a global collection of single-cell barcode sequences and show that the genus consists of eight distinct genetic types organized in five extant morphospecies. Based on morphological evidence, we reassign the species Globoturborotalita tenella to Globigerinoides and amend Globigerinoides ruber by formally proposing two new subspecies, G. ruber albus n.subsp. and G. ruber ruber in order to express their subspecies level distinction and to replace the informal G. ruber {"}white{"} and G. ruber {"}pink{"}, respectively. The genetic types within G. ruber and Globigerinoides elongatus show a combination of endemism and coexistence, with little evidence for ecological differentiation. CT-scanning and ontogeny analysis reveal that the diagnostic differences in adult morphologies could be explained by alterations of the ontogenetic trajectories towards final (reproductive) size. This indicates that heterochrony may have caused the observed decoupling between genetic and morphological diversification within the genus. We find little evidence for environmental forcing of either the genetic or the morphological diversification, which allude to biotic interactions such as symbiosis, as the driver of speciation in Globigerinoides.",
author = "Rapha{\"e}l Morard and Angelina F{\"u}llberg and Brummer, {Geert Jan A.} and Mattia Greco and Lukas Jonkers and Andr{\'e} Wizemann and Weiner, {Agnes K.M.} and Kate Darling and Michael Siccha and Ronan Ledevin and Hiroshi Kitazato and {De Garidel-Thoron}, Thibault and {De Vargas}, Colomban and Michal Kucera",
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Morard, R, Füllberg, A, Brummer, GJA, Greco, M, Jonkers, L, Wizemann, A, Weiner, AKM, Darling, K, Siccha, M, Ledevin, R, Kitazato, H, De Garidel-Thoron, T, De Vargas, C & Kucera, M 2019, 'Genetic and morphological divergence in the warm-water planktonic foraminifera genus Globigerinoides' PLoS ONE, vol. 14, no. 12, e0225246, pp. 1-30. https://doi.org/10.1371/journal.pone.0225246

Genetic and morphological divergence in the warm-water planktonic foraminifera genus Globigerinoides. / Morard, Raphaël; Füllberg, Angelina; Brummer, Geert Jan A.; Greco, Mattia; Jonkers, Lukas; Wizemann, André; Weiner, Agnes K.M.; Darling, Kate; Siccha, Michael; Ledevin, Ronan; Kitazato, Hiroshi; De Garidel-Thoron, Thibault; De Vargas, Colomban; Kucera, Michal.

In: PLoS ONE, Vol. 14, No. 12, e0225246, 05.12.2019, p. 1-30.

Research output: Contribution to JournalArticleAcademicpeer-review

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T1 - Genetic and morphological divergence in the warm-water planktonic foraminifera genus Globigerinoides

AU - Morard, Raphaël

AU - Füllberg, Angelina

AU - Brummer, Geert Jan A.

AU - Greco, Mattia

AU - Jonkers, Lukas

AU - Wizemann, André

AU - Weiner, Agnes K.M.

AU - Darling, Kate

AU - Siccha, Michael

AU - Ledevin, Ronan

AU - Kitazato, Hiroshi

AU - De Garidel-Thoron, Thibault

AU - De Vargas, Colomban

AU - Kucera, Michal

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