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- W640195943 abstract "Twelve endemic and rare taxa of Kefalonia were karyologically examined. Apart from their chromosome numbers, karyomorphology and comments on the karyotype morphology, data are also given about their habitat and potential threats. Moreover, an attempt is being made to assess the conservation status of their populations and to suggest measures for their protection and sustainable management. For every taxon, the chromosome indicators TCL and ACL are given for the first time. Allium ionicum (endemic of the Ionian Islands) is studied for the first time from Kefalonia and Zakynthos. The chromosome number is always 2n = 16, but the kayotypes differ as far as the number and the size of the satellites are concerned. Centaurea subciliaris subsp. subciliaris (endemic of the Ionian Islands), with diploid (2n = 18) and tetraploid (2n = 36 + 1Β) individuals, showed difference comparing to previous refers regarding the presence of B-chromosomes. The DNA amount of the subspecies, for both diploid and tetraploid individuals, was counted for the first time. Cerastium candidissimum (Greek endemic) has 2n = 36 chromosomes. This is the first study for Kefalonia and first publication of the karyotype. Saponaria aenesia (endemic of Kefalonia, Endangered) has 2n = 28 chromosomes and this is the first report for the species. The chromosome number 2n = 24, found for Silene ionica (Greek endemic), agrees with previous studies. However, information about its karyotype is presented here for the first time. Sulla coronaria (Mediterranean, rare in Greece) has 2n = 16 chromosomes. The karyotype is given here for the first time. Scutellaria rupestris subsp. cephalonica (exclusive endemic taxon of Kefalonia, Endangered) has 2n = 34 chromosomes. Our results are in accordance with previous refers for the taxon. The chromosome numbers of Stachys parolinii (Greek endemic, 2n = 34) and Thymus holosericeus (endemic of the Ionian Islands, 2n = 4x = 28) agree with previous studies. The results for Fritillaria messanensis subsp. gracilis (Adriatic - Ionian distribution) with 2n = 24 +1B chromosomes, agree with previous publications. Moreover, the DNA amount of the taxon was estimated for the first time for material from Greece. The subspecies was also observed after CMΑ3 and FISH to detect the 18S - 5.8S - 26S και 5S genes and compared with the other two subspecies, F. messanensis subsp. messanensis and F. messanensis subsp. sphaciotica. Fritillaria mutabilis (Greek endemic) has 2n = 24 chromosomes. This is the first study for Kefalonia and first estimation of the DNA amount for the species. Finally, the chromosome number 2n = 4x = 28, found for Cymbalaria microcalyx subsp. minor (Greek endemic), agrees with previous research for the species from the island. The chromosomes were measured here for the first time." @default.
- W640195943 created "2016-06-24" @default.
- W640195943 creator A5025783980 @default.
- W640195943 date "2014-08-13" @default.
- W640195943 modified "2023-09-27" @default.
- W640195943 title "Κυτταρολογική μελέτη ενδημικών και σπάνιων φυτών στην Κεφαλονιά" @default.
- W640195943 hasPublicationYear "2014" @default.
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