Anthemis sect. Hiorthia (Asteraceae) on Kriti Island, Greece: high ploidy levels and a new species

A morphological and karyological investigation of the Anthemis sect. Hiorthia representatives of Kriti (Greece) revealed that three different species are found on the island, all endemic, and each characterised by a different ploidy level based on the haploid series of x = 9. Anthemis abrotanifolia,...

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Main Authors: Katerina Goula, Theophanis Constantinidis
Format: Article
Language:English
Published: Pensoft Publishers 2023-07-01
Series:PhytoKeys
Online Access:https://phytokeys.pensoft.net/article/102703/download/pdf/
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author Katerina Goula
Theophanis Constantinidis
author_facet Katerina Goula
Theophanis Constantinidis
author_sort Katerina Goula
collection DOAJ
description A morphological and karyological investigation of the Anthemis sect. Hiorthia representatives of Kriti (Greece) revealed that three different species are found on the island, all endemic, and each characterised by a different ploidy level based on the haploid series of x = 9. Anthemis abrotanifolia, the species with the widest distribution, is tetraploid with 2n = 4x = 36. A. samariensis, a local endemic of the Lefka Ori, was found being decaploid, with 2n = 10x = 90, the highest number ever recorded in Anthemis. The recently discovered population on Mt. Kedros (south-central Kriti) is morphologically distinct from all the Anthemis entities growing on Kriti; it also differs from the variable and widespread A. cretica group. It is here described as a new species, A. pasiphaes Goula & Constantinidis. It is a hexaploid, with 2n = 6x = 54. All chromosome numbers are reported for the first time. Polyploidy might have acted as a reproductive barrier among these perennial species, complementing isolation by spatial distance and evolutionary divergence. Further, it might have contributed adaptation advantages to these three predominately mountain species.
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spelling doaj.art-ac558bf09afa40998f37f0a797092d242023-07-15T08:11:06ZengPensoft PublishersPhytoKeys1314-20032023-07-0122911312910.3897/phytokeys.229.102703102703Anthemis sect. Hiorthia (Asteraceae) on Kriti Island, Greece: high ploidy levels and a new speciesKaterina Goula0Theophanis Constantinidis1National and Kapodistrian University of AthensNational and Kapodistrian University of AthensA morphological and karyological investigation of the Anthemis sect. Hiorthia representatives of Kriti (Greece) revealed that three different species are found on the island, all endemic, and each characterised by a different ploidy level based on the haploid series of x = 9. Anthemis abrotanifolia, the species with the widest distribution, is tetraploid with 2n = 4x = 36. A. samariensis, a local endemic of the Lefka Ori, was found being decaploid, with 2n = 10x = 90, the highest number ever recorded in Anthemis. The recently discovered population on Mt. Kedros (south-central Kriti) is morphologically distinct from all the Anthemis entities growing on Kriti; it also differs from the variable and widespread A. cretica group. It is here described as a new species, A. pasiphaes Goula & Constantinidis. It is a hexaploid, with 2n = 6x = 54. All chromosome numbers are reported for the first time. Polyploidy might have acted as a reproductive barrier among these perennial species, complementing isolation by spatial distance and evolutionary divergence. Further, it might have contributed adaptation advantages to these three predominately mountain species.https://phytokeys.pensoft.net/article/102703/download/pdf/
spellingShingle Katerina Goula
Theophanis Constantinidis
Anthemis sect. Hiorthia (Asteraceae) on Kriti Island, Greece: high ploidy levels and a new species
PhytoKeys
title Anthemis sect. Hiorthia (Asteraceae) on Kriti Island, Greece: high ploidy levels and a new species
title_full Anthemis sect. Hiorthia (Asteraceae) on Kriti Island, Greece: high ploidy levels and a new species
title_fullStr Anthemis sect. Hiorthia (Asteraceae) on Kriti Island, Greece: high ploidy levels and a new species
title_full_unstemmed Anthemis sect. Hiorthia (Asteraceae) on Kriti Island, Greece: high ploidy levels and a new species
title_short Anthemis sect. Hiorthia (Asteraceae) on Kriti Island, Greece: high ploidy levels and a new species
title_sort anthemis sect hiorthia asteraceae on kriti island greece high ploidy levels and a new species
url https://phytokeys.pensoft.net/article/102703/download/pdf/
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