A meta-analysis of whole genome duplication and the effects on flowering traits in plants

Laura D. Porturas, Thomas J. Anneberg, Anne E. Curé, Shengpei Wang, David M Althoff, Kari Segraves

Research output: Contribution to journalArticle

Abstract

Premise of the Study: Polyploidy, or whole genome duplication (WGD), is common in plants despite theory suggesting that polyploid establishment is challenging and polyploids should be evolutionarily transitory. There is renewed interest in understanding the mechanisms that could facilitate polyploid establishment and explain their pervasiveness in nature. In particular, premating isolation from their diploid progenitors is suggested to be a crucial factor. To evaluate how changes in assortative mating occur, we need to understand the phenotypic effects of WGD on reproductive traits. Methods: We used literature surveys and a meta-analysis to assess how WGD affects floral morphology, flowering phenology, and reproductive output in plants. We focused specifically on comparisons of newly generated polyploids (neopolyploids) and their parents to mitigate potential confounding effects of adaptation and drift that may be present in ancient polyploids. Key Results: The results indicated that across a broad representation of angiosperms, floral morphology traits increased in size, reproductive output decreased, and flowering phenology was unaffected by WGD. Additionally, we found that increased trait variation after WGD was uncommon for the phenotypic traits examined. Conclusions: Our results suggest that the phenotypic effects on traits important to premating isolation of neopolyploids are small, in general. Changes in flowering phenology, reproductive output, and phenotypic variation resulting from WGD may be less critical in facilitating premating isolation and neopolyploid establishment. However, floral traits for which size is an important component of function (e.g., pollen transfer) could be strongly influenced by WGD.

Original languageEnglish (US)
Pages (from-to)469-476
Number of pages8
JournalAmerican Journal of Botany
Volume106
Issue number3
DOIs
StatePublished - Mar 1 2019

Fingerprint

meta-analysis
Polyploidy
flowering
Meta-Analysis
polyploidy
genome
Genome
phenology
reproductive performance
floral trait
Angiosperms
assortative mating
reproductive traits
Pollen
Diploidy
phenotypic variation
angiosperm
Angiospermae
diploidy
pollen

Keywords

  • effect size
  • floral display
  • floral evolution
  • floral phenotype
  • flower
  • gigas
  • minority cytotype exclusion
  • neopolyploidy
  • polyploidy

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Plant Science

Cite this

A meta-analysis of whole genome duplication and the effects on flowering traits in plants. / Porturas, Laura D.; Anneberg, Thomas J.; Curé, Anne E.; Wang, Shengpei; Althoff, David M; Segraves, Kari.

In: American Journal of Botany, Vol. 106, No. 3, 01.03.2019, p. 469-476.

Research output: Contribution to journalArticle

Porturas, Laura D. ; Anneberg, Thomas J. ; Curé, Anne E. ; Wang, Shengpei ; Althoff, David M ; Segraves, Kari. / A meta-analysis of whole genome duplication and the effects on flowering traits in plants. In: American Journal of Botany. 2019 ; Vol. 106, No. 3. pp. 469-476.
@article{f8bfda46788a400a9936af5bef02f4ca,
title = "A meta-analysis of whole genome duplication and the effects on flowering traits in plants",
abstract = "Premise of the Study: Polyploidy, or whole genome duplication (WGD), is common in plants despite theory suggesting that polyploid establishment is challenging and polyploids should be evolutionarily transitory. There is renewed interest in understanding the mechanisms that could facilitate polyploid establishment and explain their pervasiveness in nature. In particular, premating isolation from their diploid progenitors is suggested to be a crucial factor. To evaluate how changes in assortative mating occur, we need to understand the phenotypic effects of WGD on reproductive traits. Methods: We used literature surveys and a meta-analysis to assess how WGD affects floral morphology, flowering phenology, and reproductive output in plants. We focused specifically on comparisons of newly generated polyploids (neopolyploids) and their parents to mitigate potential confounding effects of adaptation and drift that may be present in ancient polyploids. Key Results: The results indicated that across a broad representation of angiosperms, floral morphology traits increased in size, reproductive output decreased, and flowering phenology was unaffected by WGD. Additionally, we found that increased trait variation after WGD was uncommon for the phenotypic traits examined. Conclusions: Our results suggest that the phenotypic effects on traits important to premating isolation of neopolyploids are small, in general. Changes in flowering phenology, reproductive output, and phenotypic variation resulting from WGD may be less critical in facilitating premating isolation and neopolyploid establishment. However, floral traits for which size is an important component of function (e.g., pollen transfer) could be strongly influenced by WGD.",
keywords = "effect size, floral display, floral evolution, floral phenotype, flower, gigas, minority cytotype exclusion, neopolyploidy, polyploidy",
author = "Porturas, {Laura D.} and Anneberg, {Thomas J.} and Cur{\'e}, {Anne E.} and Shengpei Wang and Althoff, {David M} and Kari Segraves",
year = "2019",
month = "3",
day = "1",
doi = "10.1002/ajb2.1258",
language = "English (US)",
volume = "106",
pages = "469--476",
journal = "American Journal of Botany",
issn = "0002-9122",
publisher = "Botanical Society of America Inc.",
number = "3",

}

TY - JOUR

T1 - A meta-analysis of whole genome duplication and the effects on flowering traits in plants

AU - Porturas, Laura D.

AU - Anneberg, Thomas J.

AU - Curé, Anne E.

AU - Wang, Shengpei

AU - Althoff, David M

AU - Segraves, Kari

PY - 2019/3/1

Y1 - 2019/3/1

N2 - Premise of the Study: Polyploidy, or whole genome duplication (WGD), is common in plants despite theory suggesting that polyploid establishment is challenging and polyploids should be evolutionarily transitory. There is renewed interest in understanding the mechanisms that could facilitate polyploid establishment and explain their pervasiveness in nature. In particular, premating isolation from their diploid progenitors is suggested to be a crucial factor. To evaluate how changes in assortative mating occur, we need to understand the phenotypic effects of WGD on reproductive traits. Methods: We used literature surveys and a meta-analysis to assess how WGD affects floral morphology, flowering phenology, and reproductive output in plants. We focused specifically on comparisons of newly generated polyploids (neopolyploids) and their parents to mitigate potential confounding effects of adaptation and drift that may be present in ancient polyploids. Key Results: The results indicated that across a broad representation of angiosperms, floral morphology traits increased in size, reproductive output decreased, and flowering phenology was unaffected by WGD. Additionally, we found that increased trait variation after WGD was uncommon for the phenotypic traits examined. Conclusions: Our results suggest that the phenotypic effects on traits important to premating isolation of neopolyploids are small, in general. Changes in flowering phenology, reproductive output, and phenotypic variation resulting from WGD may be less critical in facilitating premating isolation and neopolyploid establishment. However, floral traits for which size is an important component of function (e.g., pollen transfer) could be strongly influenced by WGD.

AB - Premise of the Study: Polyploidy, or whole genome duplication (WGD), is common in plants despite theory suggesting that polyploid establishment is challenging and polyploids should be evolutionarily transitory. There is renewed interest in understanding the mechanisms that could facilitate polyploid establishment and explain their pervasiveness in nature. In particular, premating isolation from their diploid progenitors is suggested to be a crucial factor. To evaluate how changes in assortative mating occur, we need to understand the phenotypic effects of WGD on reproductive traits. Methods: We used literature surveys and a meta-analysis to assess how WGD affects floral morphology, flowering phenology, and reproductive output in plants. We focused specifically on comparisons of newly generated polyploids (neopolyploids) and their parents to mitigate potential confounding effects of adaptation and drift that may be present in ancient polyploids. Key Results: The results indicated that across a broad representation of angiosperms, floral morphology traits increased in size, reproductive output decreased, and flowering phenology was unaffected by WGD. Additionally, we found that increased trait variation after WGD was uncommon for the phenotypic traits examined. Conclusions: Our results suggest that the phenotypic effects on traits important to premating isolation of neopolyploids are small, in general. Changes in flowering phenology, reproductive output, and phenotypic variation resulting from WGD may be less critical in facilitating premating isolation and neopolyploid establishment. However, floral traits for which size is an important component of function (e.g., pollen transfer) could be strongly influenced by WGD.

KW - effect size

KW - floral display

KW - floral evolution

KW - floral phenotype

KW - flower

KW - gigas

KW - minority cytotype exclusion

KW - neopolyploidy

KW - polyploidy

UR - http://www.scopus.com/inward/record.url?scp=85063280639&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85063280639&partnerID=8YFLogxK

U2 - 10.1002/ajb2.1258

DO - 10.1002/ajb2.1258

M3 - Article

VL - 106

SP - 469

EP - 476

JO - American Journal of Botany

JF - American Journal of Botany

SN - 0002-9122

IS - 3

ER -