04163nas a2200277 4500008004100000245009200041210007200133260007100205300000700276520333800283653001403621653001603635653001503651653001403666653001503680653001303695653001403708653001403722653001403736653001403750653001303764653001603777653001603793100002203809856005403831 2020 eng d00aKaryotypová variabilita stonožkovců (Myriapoda) / Karyotype variability of Myriapoda0 aKaryotypová variabilita stonožkovců Myriapoda Karyotype variabil aPraguebUniverzita Karlova, Přírodovědecká fakultac13/07/2020 a383 a

Abstrakt: Bakalářská práce pojednává o diploidních počtech chromozomů, jejich morfologii a chromozomovém mechanismu určení pohlaví u čtyřech tříd podkmene Myriapoda. Pozornost je zároveň věnována vzájemným fylogenetickým vztahům v rámci podkmene. Přehled literatury ukazuje míru prozkoumanosti cytogenetických charakteristik u jednotlivých tříd, která je zejména ve třídách Pauropoda a Symphyla stále velmi nízká a v rámci třídy Diplopoda je stále ještě velké množství řádů, kde nám tyto informace zcela chybí. Cytogenetické analýzy odhalily celkové rozpětí počtu chromozomů pro: Pauropoda 2n = 12 – 27, Symphyla 2n = 11 – 18, Chilopoda 2n = 14 – 54 a Diplopoda 2n = 8 – 30. V rámci všech čtyř tříd se vyskytují jak morfologicky nediferencované pohlavní chromozomy, tak systémy typu XX/XY a XX/X0. Navíc je u řádu Spirostreptida uváděný i systém X1X1X2X2/X1X20. Pouze u malého množství druhů z řádů Glomerida, Calipodida, Julida, Spirostreptida a Lithobiomorpha a čeledi Scutigerellidae se podařilo identifikovat výskyt NORů. V práci se také podařilo identifikovat některé neshody mezi údaji různých prací, kdy se ukazuje, že zejména některé starší studie byly postaveny na špatném pozorování chromozomů v karyotypu.

Karyotype variability of Myriapoda

Abstract: The bachelor thesis deals with diploid numbers of chromosomes, their morphology and chromosome mechanism of sex determination in four classes of the subphylum Myriapoda. Attention is also paid to mutual phylogenetic relationships within the subphylum. A review of the literature shows the degree of examination of cytogenetic characteristics in individual classes, which is still very low, especially in the classes Pauropoda and Symphyla, and within the class Diplopoda there are still a large number of orders where we completely lack this information. Cytogenetic analyzes revealed a total range of chromosome numbers for: Pauropoda 2n = 12 - 27, Symphyla 2n = 11 - 18, Chilopoda 2n = 14 - 54 and Diplopoda 2n = 8 - 30. Within all four classes, there are both morphologically undifferentiated sex chromosomes and XX/XY and XX/X0 systems. In addition, the X1X1X2X2/X1X20 system is mentioned for the order Spirostreptida. Only a small number of species from the orders Glomerida, Calipodida, Julida, Spirostreptida, Lithobiomorpha and from family Scutigerellidae were able to identify the occurrence of NORs. The work also managed to identify some discrepancies between the data of different works, which shows that especially some older studies were based on poor observation of chromosomes in the karyotype.

10aChilopoda10achromosomes10achromozomy10aDiplopoda10afylogeneze10akaryotyp10akaryotype10aMyriapoda10aPauropoda10aphylogeny10aSymphyla10avariabilita10avariability1 aKášová, Adéla uhttps://dspace.cuni.cz/handle/20.500.11956/11972501924nas a2200217 4500008004100000245012000041210006900161260001200230300001400242490000700256520127800263653001401541653001501555653001401570653001101584653001201595653001301607100002001620700001701640856004901657 2018 eng d00aChecklist of the Myriapoda in Cretaceous Burmese amber and a correction of the Myriapoda identified by Zhang (2017)0 aChecklist of the Myriapoda in Cretaceous Burmese amber and a cor c12/2020 a1131-11400 v143 a

An inventory of the Myriapoda (Diplopoda, Chilopoda, Symphyla) from Cretaceous Burmese amber, Myanmar, is presented, including the oldest and/or first fossil record for numerous orders. For millipedes (Diplopoda) 527 records, including 460 new specimens determined by us, belonging to 13 of 16 recent orders are listed: Polyxenida, Glomeridesmida, Glomerida, Siphonophorida, Polyzoniida, Platydesmida, Siphoniulida, Chordeumatida, Polydesmida, Stemmiulida, Callipodida, Spirostreptida and Spirobolida. For centipedes, 33 records for 4 of the 5 recent orders are listed: Scutigeromorpha, Lithobiomorpha, Scolopendromorpha and Geophilomorpha. For Symphyla, three records for both families, Scutigerellidae and Scolopendrellidae, are listed. The majority of Diplopoda records (30.5%) are Polydesmida. The record of the Polyzoniida includes first instar octopod juveniles. The checklist includes the first fossil representatives known of the Platydesmida, as well as the oldest known fossils of the Polyxenida, Glomeridesmida, Glomerida, Siphonophorida, Polyzoniida, Siphoniulida, Spirostreptida, as well as both Symphyla families. Misidentifications by Zhang (2017) are corrected; while most Chilopoda in that list are correct, almost all Diplopoda are misidentified.

10aChilopoda10aCretaceous10aDiplopoda10afossil10aMyanmar10aSymphyla1 aWesener, Thomas1 aMoritz, Leif uhttps://checklist.pensoft.net/article/30320/