Chromosome numbers for the Italian flora: 5

Peruzzi, Lorenzo; Astuti, Giovanni; Caparelli, K. F.; D’Antraccoli, Marco; Roma-Marzio, Francesco

doi:10.3897/italianbotanist.5.26855

Cited by 1 publication

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Exploring the karyotype of Bulgarian flowering plants, Kuzmanov et al [25,26] reported that the C. thoermeri 2n karyotype is equal to 16. The same karyotype (2n = 16) occurs in C. nutans [27][28][29]. Our analyses of both molecular and morphological data, gave us sufficient evidence to propose restoration of C. nutans and C. thoermeri as one species with two subspecies, Table 3.…”

Section: Resultssupporting

confidence: 59%

Genetic diversity of Bulgarian representatives of genus Carduus L. (Asteraceae) as revealed by variability in sequences of internal transcribed spacers region

Denev

Todorov

Kirilova

et al. 2017

Biotechnology & Biotechnological Equipment

View full text Add to dashboard Cite

The biodiversity of genus Carduus in Bulgaria is grossly under-studied with modern methods, which leads to unclear status of species and hampers the assessment of their habitats and conservation status. In this study, we used the variability of internal transcribed spacers (ITS) to investigate the biodiversity of Carduus species collected from different floristic regions of Bulgaria. Thirty-three samples were processed. Among the studied species, C. acanthoides exhibited the highest ITS variability (eight single nucleotide polymorphisms were found). High ITS variability was also found in C. crispus and C. hamulosus, demonstrating that some of the local Carduus species possesses unique genetic diversity, which can serve as source for future divergence of new forms and subspecies. For each species, unique nucleotides suitable as molecular taxonomy markers were identified. However, C. nutans and C. thoermeri displayed completely identical ITS sequences, which is in agreement with all ITS sequences of these species collected elsewhere in the world and deposited in the NCBI database. After careful analyses of both molecular and morphological data, we propose to restore C. nutans and C. thoermeri as one species with two subspecies. Namely, Carduus nutans subsp. nutans and Carduus nutans subsp. thoermeri. We recommend diameter of capitulum, length of peduncle, width of peduncle and width of bract as diagnostic features of taxonomic significance for distinguishing the two subspecies.

show abstract

Section: Resultssupporting

confidence: 59%