Zhodnocení vnitrodruhové variability Sparganium erectum s využitím morfometriky, AFLP a průtokové cytometrie
Evaluation of variability within Sparganium erectum using morphometrics, AFLP and flow cytometry
diploma thesis (DEFENDED)
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http://hdl.handle.net/20.500.11956/26585Identifiers
Study Information System: 34267
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- Kvalifikační práce [20089]
Author
Advisor
Referee
Kaplan, Zdeněk
Faculty / Institute
Faculty of Science
Discipline
Botany
Department
Department of Botany
Date of defense
22. 9. 2009
Publisher
Univerzita Karlova, Přírodovědecká fakultaLanguage
Czech
Grade
Very good
Tato diplomová práce pojednává o vnitrodruhové morfologické a genetické variabilitě druhu Sparganium erectum na území České Republiky. Ke studiu byly použity klasické (morfometrické analýzy) i moderní přístupy (průtoková cytometrie, AFLP). Morfometrické analýzy ukázaly existenci skupin, z nichž některé se částečně prolínají. Stanovení velikosti genomu pomocí průtokové cytometrie přineslo odlišení tří poddruhů. Molekulární marker AFLP spolehlivě odlišil jednotlivé poddruhy i přechodné jedince. Powered by TCPDF (www.tcpdf.org)
MSc. thesis is based on evaluation of intraspecific morphological and genetic variation of Sparganium erectum L. in the Czech Republic. Four intraspecific taxa were examined: S. erectum subsp. erectum L., S. erectum subsp. oocarpum (ČELAK.) DOMIN, S. erectum subsp. neglectum (BEEDY) RICHTER and S. erectum subsp. microcarpum (L.M. NEUMANN) DOMIN. Various approaches such as multivariate morphometric analysis (PCA, discriminant analyses), estimation of genome size by propidium iodide flow cytometry and molecular analysis of total genomic DNA (AFLP) were applied for study close related subspecies. Multivariate analysis of morphological characters of fruits (for 350 individuals from 63 native populations) presented some distribution to four closed groups. Partial overlapping was observed for S.erectum subsp. neglectum with subsp. microcarpum and subsp. oocarpum. Similar situation (overlapping subsp. neglectum a microcarpum) was observed within genome size. Remaining two taxa, S. erectum subsp. erectum and subsp. oocarpum, were well-differentiated using genome size data. Most important morphological characters on fruits useful for subspecies determination were: sterility of fruit heads, presence or absence of peduncle, distinct shoulder between upper and lower part, constriction below the shoulder, width of fruit...