Karyotaxonomy of Greek serpentine angiosperms

Constantinidis, Theophanis; Bareka, Pepy; Kamari, Georgia

doi:10.1046/j.1095-8339.2002.00044.x

Cited by 32 publications

(31 citation statements)

References 23 publications

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“…The ratio X max : X min is 1.78:1. The chromosome number 2n = 24 confirms previous counts of CONSTANTINIDIS et al (2002) for populations from Greece, Nomos Ioanininon. Two of the investigated populations differ by a greater number of metacentric chromosomes in Greek population and by a number of pairs with satellites.…”

Section: Caryophyllaceaesupporting

confidence: 75%

“…This plant was also found on serpentines in the Eastern Rhodope Mts. (PAVLOVA et al 2004) but not confined to it as pointed out by MELZHEIM-ER (1980) andCONSTANTINIDIS et al (2002). Karyotype -It is asymmetrical (TF 37.9%), consisting of 2n = 2x = 8m + 8sm + 4sm-SAT + 4I-SAT = 24 chromosomes.…”

Section: Caryophyllaceaementioning

confidence: 97%

“…In that reason, additional information about karyology of plants growing on serpentine and non-serpentine substrate is needed. Not much work has been devoted to study karyotaxonomy of the rich Balkan serpentine flora (CONSTANTINIDIS et al 2002;KAMARI et al 2003;PAVLOVA and TOSHEVA 2003;2004). This paper aims to investigate the chromosome number and karyotype morphology of taxa from Caryophyllaceae and Brassicaceae, most of which are growing predominantly or restricted to the serpentines in Bulgaria thus to help in taking taxonomic decisions and elucidate evolutionary problems.…”

Section: Introductionmentioning

confidence: 99%

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Karyology of Plants Growing on Serpentines in Bulgaria

Pavlova

2008

Caryologia

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Section: Caryophyllaceaesupporting

confidence: 75%

Section: Caryophyllaceaementioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Karyology of Plants Growing on Serpentines in Bulgaria

Pavlova

2008

Caryologia

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“…Crepis macropus is a diploid species with 2n = 2x = 8 chromosomes. This species has the same chromosome number with the members of the section Berinia such as C. turcica, C. merxmuerlleri, C. sibthorpiana, C. sonchifolia (Nazarova 1984, Kamari et al 1991, Kamari 1992, Constantinidis et al 2002, Enke 2008. There is a minor difference in the chromosome morphology between C. macropus and C. turcica (Kamari et al 1991).…”

Section: Discussionmentioning

confidence: 99%

Micromorphological, Anatomical and Cytogenetical Studies in Endemic Crepis macropus Boiss. & Heldr. (Asteraceae) from Turkey

İnceer¹,

Kalmuk²,

Imamoglu³

et al. 2016

Acta Botanica Croatica

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-In the present study, the micromorphological structure of achene, pappus and style using scanning electron microscope (SEM), stomatal characteristics, anatomy of stem and achene together with chromosome number and nuclear DNA content of the Turkish endemic Crepis macropus Boiss. & Heldr. are provided in order to expand knowledge of its taxonomy. The SEM studies in this species show that dense spiny cells are found on the achene surface, the pappus bristle has 3-5 spikes and the style possesses slender papillae. The stem structure is composed of epidermis, collenchyma, parenchymatous cortex and pith. The species has anomocytic stomata in both the upper and the lower surface of the leaves. The pericarp of the achene is mainly composed of several layers of sclerenchymatous cells. In this species, the chromosome number is 2n = 2x = 8, karyotype consists of two submetacentric and six subtelocentric chromosomes and nuclear DNA content (2C-value) is 12.96 pg. These data are presented here for the fi rst time and their taxonomic values are discussed.

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“…al. (1993), Markova and Goranova (1994), Mártonfi and Mártonfiova (1996), Boscaiu et al (1998), Tahiri et al (1998), Constantinidis et al (2002). Jalas (1948), Jalas and Kalev (1967) and Mártonfi and Mártonfiova (1996) and Mehrpure et al (2002) have discussed chromosomal evolution of Thymus regarding their basic chromosome numbers.…”

mentioning

confidence: 99%

A comparison of chromosome characters in three species of Thymus (Lamiaceae) collected in Russia and Mongolian Altai

et al. 2008

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ABSTRACT. Characters of the resting, the mitotic prophase and metaphase chromosomes in three species of Thymus were studied. The species studied had commonly resting chromosomes of the complex chromocenter type and mitotic prophase chromosomes of the proximal type. Thymus mongolicus showed the chromosome numbers of 2n=26 and 27 and T. przewalskii and T. roseus showed the chromosome number of 2n=26. The chromosome number of 2n=26 for T. przewalskii and that of 2n=27 for T. mongolicus were reported here for the first time and that of 2n=26 for T. roseus and T. mongilicus verified the previous reports. The chromosome number of 2n=27 for T. mongolicus seemed to have one B-chromosome as 2n=26+1B with respect to the existence of a peculiar heteropycnotic body at resting stage and high pollen stainability. Three species were commonly placed in the diploid level if the basic chromosome numbers of x=13 was accepted. Their karyotypes at mitotic metaphase were quite similar to each other regarding chromosome sizes, chromosome types according to the centromeric position and mono-modality of chromosome lengths from the longest to the shortest chromosomes except for satellite sizes. Thymus L., the Lamiaceae (Labiatae) is small subshrub plants and consists of approximately 400 species (Willis 1982). They are distributed in the temperate zone of the Eurasian continent, mainly in the Mediterranean region (Willis 1982) and grow in diabase, serpentine and calcareous rocks, limestone, in cracks rocks, on a bank, steppe, on sandy soils, xerophilous grassland, on loessic slopes and along road sides. Thymus has always been taxonomically problematic group and views concerning the taxonomic definition of the forms are extremely varied. It produces some natural hybrids. Plants of the genus is often cultivated and propagate to extract the aromatic ethereal oil and flavouring. KEYWORDS:The first cytological observation in Thymus was counting and documenting the chromosome number: 2n=24 in T. serpyllum reported by Löve and Löve (1942). Then, many more researchers have found at least 50 different chromosome numbers from 2n=14 of T. seravschanicus to 2n=90 of T. zygioides var. lycaonicus. They also have found aneuploidy in T. longedentatus as well as autoploidy in about 170 taxa included 139 species, 17 subspecies, 12 varieties and two hybrids by Löve and Löve (1942), Saaremaa (1947), Jalas (1948), Jalas and Kaleva (1966Kaleva ( , 1967, Trela-Sawicka (1968, 1970, Gogina and Svetozarova (1972), Gurzenkov (1972), Lee (1972), Jalas and Uotila (1976), Krogulevich (1978), Arrigonia et. al. (1980, Bir and Saggoo (1980), ElenaRoselló (1980), Morales Valverde (1980, 19861986a, 1990, Astanova (1981), Hruška and Bellomaria (1982), Fernandes and Leitao (1984), Funamoto et. al. (1993), Markova and Goranova (1994, Mártonfi and Mártonfiova (1996), Boscaiu et al. (1998), Tahiri et al. (1998, Constantinidis et al. (2002). Jalas (1948), Jalas and Kalev (1967) and Mártonfi and Mártonfiova (1996) and Mehrpure et al. (2002) have discussed chromosomal evolutio...

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Karyotaxonomy of Greek serpentine angiosperms

Cited by 32 publications

References 23 publications

Karyology of Plants Growing on Serpentines in Bulgaria

Karyology of Plants Growing on Serpentines in Bulgaria

Micromorphological, Anatomical and Cytogenetical Studies in Endemic Crepis macropus Boiss. & Heldr. (Asteraceae) from Turkey

A comparison of chromosome characters in three species of Thymus (Lamiaceae) collected in Russia and Mongolian Altai

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