Hybridization may endanger the rare North Apennine endemic Cirsium bertolonii
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F23%3A00130984" target="_blank" >RIV/00216224:14310/23:00130984 - isvavai.cz</a>
Alternative codes found
RIV/62156489:43210/23:43923532
Result on the web
<a href="https://doi.org/10.1007/s00606-023-01854-2" target="_blank" >https://doi.org/10.1007/s00606-023-01854-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00606-023-01854-2" target="_blank" >10.1007/s00606-023-01854-2</a>
Alternative languages
Result language
angličtina
Original language name
Hybridization may endanger the rare North Apennine endemic Cirsium bertolonii
Original language description
We examined populations of North Apennine stenoendemics Cirsium bertolonii in the Apuan Alps and Tuscan-Emilian Apennines and found individuals morphologically shifted to co-occurring C. acaulon or C. erisithales. Hybrid status of these intermediates was confirmed by flow cytometry, morphometrics and amplified fragment length polymorphism (AFLP). We interpreted these hybrids taxonomically as Cirsium xsagrense (C. acaulon x C. bertolonii) and C. xabetonense (C. bertolonii x C. erisithales). Estimated genome size (2C) was 2244 +/- 31 Mbp for C. xsagrense and 2152 +/- 99 Mbp for C. xabetonense. Their genomic GC content was 38.95 +/- 0.35% and 38.77 +/- 0.26%, respectively. Diploid chromosome number 2n = 34 was counted for C. bertolonii, and the previously reported 2n = 12 needs to be considered erroneous. We found C. bertolonii to be a gynodioecious species (like many other Cirsium species) that is not reproductively isolated by ploidy level or chromosome number from co-occurring congeners. The relatively frequent occurrence of C. xsagrense in Monte Sagro (locus classicus of C. bertolonii) and the prevalence of C. xabetonense in Alpe Tre Potenze suggest that hybridization occurs repeatedly in C. bertolonii, as also confirmed by older herbarium specimens. C. xabetonense produces ripe achenes and F2 hybrids or backcrosses, as some other Cirsium hybrids do. Genetic erosion/swamping via interspecific hybridization can therefore pose a risk to the genetic integrity of C. bertolonii, as it does for some other narrowly endemic high-mountain Cirsium species in Europe.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10611 - Plant sciences, botany
Result continuities
Project
<a href="/en/project/GA20-15989S" target="_blank" >GA20-15989S: Evolution of genome size - a new role for the centromere drive</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plant Systematics and Evolution
ISSN
0378-2697
e-ISSN
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Volume of the periodical
309
Issue of the periodical within the volume
3
Country of publishing house
AT - AUSTRIA
Number of pages
21
Pages from-to
1-21
UT code for WoS article
000994303600001
EID of the result in the Scopus database
2-s2.0-85160104480