Complex patterns of ploidy in a holocentric plant clade
(Schoenus, Cyperaceae) in the Cape biodiversity hotspot

J 2023

Complex patterns of ploidy in a holocentric plant clade (Schoenus, Cyperaceae) in the Cape biodiversity hotspot

ELLIOTT, Tammy L, A. Muthama MUASYA a Petr BUREŠ

Základní údaje

Originální název

Complex patterns of ploidy in a holocentric plant clade (Schoenus, Cyperaceae) in the Cape biodiversity hotspot

Autoři

ELLIOTT, Tammy L (124 Kanada, garant, domácí), A. Muthama MUASYA a Petr BUREŠ (203 Česká republika, domácí)

Vydání

Annals of Botany, Oxford, Oxford University Press, 2023, 0305-7364

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10611 Plant sciences, botany

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 4.200 v roce 2022

Kód RIV

RIV/00216224:14310/23:00130323

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1093/aob/mcac027

UT WoS

000787797200001

Klíčová slova anglicky

Aneuploidy; Cape Floristic Region; chromosome fission; chromosome fusion; climate; Cyperaceae; genome size; holocentric chromosomes; polyploidy; Schoeneae; Schoenus; soil chemistry

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 6. 3. 2024 10:39, Mgr. Marie Šípková, DiS.

Anotace

V originále

Background and Aims It is unclear how widespread polyploidy is throughout the largest holocentric plant family - the Cyperaceae. Because of the prevalence of chromosomal fusions and fissions, which affect chromosome number but not genome size, it can be impossible to distinguish if individual plants are polyploids in holocentric lineages based on chromosome count data alone. Furthermore, it is unclear how differences in genome size and ploidy levels relate to environmental correlates within holocentric lineages, such as the Cyperaceae. Methods We focus our analyses on tribe Schoeneae, and more specifically the southern African clade of Schoenus. We examine broad-scale patterns of genome size evolution in tribe Schoeneae and focus more intensely on determining the prevalence of polyploidy across the southern African Schoenus by inferring ploidy level with the program ChromEvol, as well as interpreting chromosome number and genome size data. We further investigate whether there are relationships between genome size/ploidy level and environmental variables across the nutrient-poor and summer-arid Cape biodiversity hotspot. Key Results Our results show a large increase in genome size, but not chromosome number, within Schoenus compared to other species in tribe Schoeneae. Across Schoenus, there is a positive relationship between chromosome number and genome size, and our results suggest that polyploidy is a relatively common process throughout the southern African Schoenus. At the regional scale of the Cape, we show that polyploids are more often associated with drier locations that have more variation in precipitation between dry and wet months, but these results are sensitive to the classification of ploidy level. Conclusions Polyploidy is relatively common in the southern African Schoenus, where a positive relationship is observed between chromosome number and genome size. Thus, there may be a high incidence of polyploidy in holocentric plants, whose cell division properties differ from monocentrics.

Návaznosti

GA20-15989S, projekt VaV

Název: Evoluce velikosti genomu - centromerický drajv v nové roli (Akronym: Centrogenomtah)

Investor: Grantová agentura ČR, Evolution of genome size - a new role for the centromere drive

90140, velká výzkumná infrastruktura

Název: e-INFRA CZ

Citovat

ELLIOTT, Tammy L, A. Muthama MUASYA a Petr BUREŠ. Complex patterns of ploidy in a holocentric plant clade (Schoenus, Cyperaceae) in the Cape biodiversity hotspot. Annals of Botany. Oxford: Oxford University Press, 2023, roč. 131, č. 1, s. 143-156. ISSN 0305-7364. Dostupné z: https://dx.doi.org/10.1093/aob/mcac027.

@article{2254832,
   author = {Elliott, Tammy L and Muasya, A. Muthama and Bureš, Petr},
   article_location = {Oxford},
   article_number = {1},
   doi = {http://dx.doi.org/10.1093/aob/mcac027},
   keywords = {Aneuploidy; Cape Floristic Region; chromosome fission; chromosome fusion; climate; Cyperaceae; genome size; holocentric chromosomes; polyploidy; Schoeneae; Schoenus; soil chemistry},
   language = {eng},
   issn = {0305-7364},
   journal = {Annals of Botany},
   title = {Complex patterns of ploidy in a holocentric plant clade (Schoenus, Cyperaceae) in the Cape biodiversity hotspot},
   url = {https://doi.org/10.1093/aob/mcac027},
   volume = {131},
   year = {2023}
}

TY  - JOUR
ID  - 2254832
AU  - Elliott, Tammy L - Muasya, A. Muthama - Bureš, Petr
PY  - 2023
TI  - Complex patterns of ploidy in a holocentric plant clade (Schoenus, Cyperaceae) in the Cape biodiversity hotspot
JF  - Annals of Botany
VL  - 131
IS  - 1
SP  - 143-156
EP  - 143-156
PB  - Oxford University Press
SN  - 03057364
KW  - Aneuploidy
KW  - Cape Floristic Region
KW  - chromosome fission
KW  - chromosome fusion
KW  - climate
KW  - Cyperaceae
KW  - genome size
KW  - holocentric chromosomes
KW  - polyploidy
KW  - Schoeneae
KW  - Schoenus
KW  - soil chemistry
UR  - https://doi.org/10.1093/aob/mcac027
N2  - Background and Aims It is unclear how widespread polyploidy is throughout the largest holocentric plant family - the Cyperaceae. Because of the prevalence of chromosomal fusions and fissions, which affect chromosome number but not genome size, it can be impossible to distinguish if individual plants are polyploids in holocentric lineages based on chromosome count data alone. Furthermore, it is unclear how differences in genome size and ploidy levels relate to environmental correlates within holocentric lineages, such as the Cyperaceae. Methods We focus our analyses on tribe Schoeneae, and more specifically the southern African clade of Schoenus. We examine broad-scale patterns of genome size evolution in tribe Schoeneae and focus more intensely on determining the prevalence of polyploidy across the southern African Schoenus by inferring ploidy level with the program ChromEvol, as well as interpreting chromosome number and genome size data. We further investigate whether there are relationships between genome size/ploidy level and environmental variables across the nutrient-poor and summer-arid Cape biodiversity hotspot. Key Results Our results show a large increase in genome size, but not chromosome number, within Schoenus compared to other species in tribe Schoeneae. Across Schoenus, there is a positive relationship between chromosome number and genome size, and our results suggest that polyploidy is a relatively common process throughout the southern African Schoenus. At the regional scale of the Cape, we show that polyploids are more often associated with drier locations that have more variation in precipitation between dry and wet months, but these results are sensitive to the classification of ploidy level. Conclusions Polyploidy is relatively common in the southern African Schoenus, where a positive relationship is observed between chromosome number and genome size. Thus, there may be a high incidence of polyploidy in holocentric plants, whose cell division properties differ from monocentrics.
ER  -

ELLIOTT, Tammy L, A. Muthama MUASYA a Petr BUREŠ. Complex patterns of ploidy in a holocentric plant clade (Schoenus, Cyperaceae) in the Cape biodiversity hotspot. \textit{Annals of Botany}. Oxford: Oxford University Press, 2023, roč.~131, č.~1, s.~143-156. ISSN~0305-7364. Dostupné z: https://dx.doi.org/10.1093/aob/mcac027.

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