Wyniki wyszukiwania

1

A note on a mosaic bull with XY-XYY sex chromosomes

100%

Jaszczak K., Parada R., Jaszczak J.

Animal Science Papers and Reports

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2002

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tom 20

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nr 3

2

Comparative sex chromosome hybridizations in Ruminantia

86%

Kozubska-Sobocinska A., Rejduch B., Danielak-Czech B., Babicz M., Bak A.

Annals of Animal Science

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2012

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tom 12

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nr 4

3

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Genome size in Humulus lupulus L. and H. japonicus Siebold and Zucc. [Cannabaceae]

86%

Grabowska-Joachimiak A., Sliwinska E., Pigula M., Skomra U., Joachimiak A. J.

Acta Societatis Botanicorum Poloniae

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2006

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tom 75

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nr 3

207-214

We analysed chromosome lengths, karyotype structure, and nuclear DNA content (flow cytometry) in diploid (2n=20) and triploid (2n=30) European H. lupulus var. lupulus, American H. lupulus var. neomexicanus (2n=20) and Japanese ornamental hop, H. japonicus (F/2n=16; M/2n=17). Diploid female representatives of H. lupulus var. lupulus and H. l. var. neomexicanus differed in total length of the basal chromosome set (23.16 µm and 25.99 µm, respectively) and nuclear 2C DNA amount (5.598 pg and 6.064 pg) but showed similar karyotype structure. No deviation from the additivity, both in chromosome length and 2C DNA amount was evidenced in triploid monoecious H. lupulus (2n=30, XXY). H. japonicus showed different karyotype structure, smaller basal chromosome set (F/18.04 µm, M/20.66 µm) and lower nuclear DNA amount (F/3.208 pg and M/3.522 pg). There are first evaluations of nuclear genome size in diploid, not commercial representative of European H. lupulus var. lupulus and American H. lupulus var. neomexicanus and first attempt to determine the absolute male and female genome size in two Humulus species.

4

Sex chromatin and Y chromosomes in dioecious species, Rumex acetosa L.

86%

Mosiolek M., Pedrosa-Harand A., Schweizer D., Joachimiak A. J.

Acta Biologica Cracoviensia. Series Botanica. Supplement

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2005

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tom 47

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nr 1

5

Genetic variability in goitred gazelle Gazella subgutturosa subgutturosa: allozymes and karyotypes

86%

Schreiber A., Von Hegel G.

Acta Theriologica

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1999

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tom 44

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nr 1

The electrophoretic polymorphism of blood proteins, and karyotypes, were studied in up to 33 captive-bred Persian goitred gazelles Gazella s. subgutturosa (Giildenstaedt, 1780). Allozymes, haemoglobins and serum proteins representing 33 putative genetic loci displayed four biallelic polymorphisms (carbonic anhydrase, malate dehydrogenase, mannose phosphate isomerase, transferrin), resulting in a percentage polymorphism of p = 0.121, and an expected heterozygosity of He = 0.047. Six males had 2n = 31, and seven females 2n = 30 chromosomes. This sex-specific difference was due to an X-autosomal translocation, coupled with a XYiYz sex determining system in males. Neither karyotypes nor protein polymorphism provided evidence to explain the high mortality of newborn goitred gazelles.

6

Seed sexing revealed female bias in two Rumex species

72%

Kwolek B., Joachimiak A.

Acta Societatis Botanicorum Poloniae

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2011

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tom 80

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nr 2

Sex-ratio bias in seeds of dioecious Rumex species with sex chromosomes is an interesting and still unsettled issue. To resolve gender among seeds of R. acetosa and R. thyrsiflorus (two species with an XX/XY1Y2 sex chromosome system), this work applied a PCR-based method involving DNA markers located on Y chromosomes. Both species showed female-biased primary sex ratios, with female bias greater in R. acetosa than in R. thyrsiflorus. The observed predominance of female seeds is consistent with the view that the female biased sex ratios in Rumex are conditioned not only postzygotically but also prezygotically

7

Application of spermatozoa from neo-males (XX) to induce androgenetic development in rainbow trout (Oncorhynchus mykiss)

72%

Michalik O., Kowalski R., Ziomek E., Hliwa P., Mieszkowska A., Rozynski R., Ocalewicz K.

Folia Biologica

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2017

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tom 65

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nr 2

8

Giant sex chromosomes retained within the Portuguese lineage of the field vole (Microtus agrestis)

72%

Gimenez M. D., Pauperio J., Alves P. C., Searle J. B.

Acta Theriologica

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2012

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tom 57

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nr 4

The field vole (Microtus agrestis) is characterised by extremely large blocks of heterochromatin on both the X and Y chromosome. Some other Microtus also have blocks of heterochromatin on their sex chromosomes but not as extensive and always of independent origin from the heterochromatic expansion found in M. agrestis. Coupled with evidence of geographic variation in large heterochromatic blocks within other species (e.g. in the western hedgehog Erinaceus europaeus), it might be expected that field voles would show substantial variation in size and disposition of the sex chromosome heterochromatin. In fact, only minor variation has been described up to now. Those studies conducted previously were largely on field voles from central and northern Europe. Here, we describe the karyotype of field voles from Portugal, of interest because recent molecular studies have shown field voles from western Iberia to be a separate evolutionary unit that might be considered a cryptic species, distinct from populations further to the east. The two Portuguese field voles (one female, one male) that we examined also had essentially the same karyotype as seen in other field voles, including the giant sex chromosomes, but with small differences in the structure of the Y chromosome from that described previously. The finding that field voles throughout Europe show relatively little variation in their giant sex chromosomes is consistent with molecular data which suggest a recent origin for this complex of species/near-species.

9

Chromosome rearrangements and survival of androgenetic rainbow trout (Oncorhynchus mykiss)

72%

Ocalewicz K., Dobosz S., Kuzminski H., Nowosad J., Goryczko K.

Journal of Applied Genetics

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2010

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tom 51

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nr 3

The purpose of this work was to quantify the impact of spontaneous and X-radiation-induced chromosome rearrangements on survival rate of androgenetic rainbow trout (Oncorhynchus mykiss). Various doses of X irradiation (50, 150, 250, 350 Gy) were used for inactivation of nuclear DNA in oocytes. After the irradiation, eggs were inseminated with normal sperm from 4 males derived from a strain characterized by Robertsonian rearrangements and length polymorphism of the Y chromosome. The haploid zygotes were exposed to a high hydrostatic pressure (7000 psi) to duplicate the paternal DNA. Neither Robertsonian chromosome polymorphism nor the Y chromosome morphology impaired the viability of the androgenetic embryos and alevins. Moreover, survival of eyed embryos of the androgenetic rainbow trout increased significantly with increasing doses of oocyte X irradiation. After 6 months of rearing, only specimens from the 250 and 350 Gy variants survived. The number of fingerlings with remnants of the maternal genome in the forms of chromosome fragments was higher in the 250 Gy group. Intraindividual variation of chromosome fragment number was observed, and some individuals exhibited haploid/diploid mosaicism and body malformations. Individuals irradiated with less than 250 Gy died, presumably because of the conflict between intact paternally derived chromosomes and the residues of maternal genome in the form of chromosome fragments.

10

Interspecies hybridizations in situ with bovine heterosome painting probes for identification of sex chromosomes in fallow deer (Dama dama)

72%

Kozubska-Sobocinska A., Danielak-Czech B., Babicz M., Bak A., Rejduch B.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica

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2013

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tom 31

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nr 4

11

Chromosome banding in Cacopsylla mali [Schmidberger] and Cacopsylla sorbi [Linnaeus] [Homoptera, Psyllidae] with polymorphic sex chromosomes

72%

Maryanska-Nadachowska A., Grozeva S.

Folia Biologica

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2001

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tom 49

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nr 3-4

12

Meiosis of two species of Cacopsylla with polymorphic sex chromosomes in males [Homoptera, Psyllidae]

72%

Grozeva S. M., Maryanska-Nadachowska A.

Folia Biologica

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1995

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tom 43

|

nr 3-4

13

Sex chromosome meiotic drive in hybrid males of the common shrew [Sorex araneus]

72%

Fedyk S., Bajkowska U., Chetnicki W.

Folia Biologica

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2005

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tom 53

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nr 3-4

14

Cytogenetic markers for X chromosome in a karyotype of rainbow trout from Rutki Strain [Poland]

72%

Ocalewicz K.

Folia Biologica

|

2002

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tom 50

|

nr 1-2

15

Molecular techniques for sex identification in birds

72%

Dubiec A., Zagalska-Neubauer M.

Biological Letters

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2006

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tom 43

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nr 1

16

Robertsonian translocation [8;14] in an infertile bitch [Canis familiaris]

72%

Switonski M., Szczerbal I., Skorczyk A., Yang F., Antosik P.

Journal of Applied Genetics

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2003

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tom 44

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nr 4

17

The use amelogenin gene polymorphism in PCR embryo sexing in bovine IVF embryos

72%

Lechniak D., Cumming J. R.

Journal of Applied Genetics

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1997

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tom 38

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nr 1

The present study describes a rapid, simple method of bovine IVF embryo sexing by use of PCR technique. A pair of primers corresponding to the bovine amelogenin sequence has been used. The Rapid Cycler (Idaho Technology, USA) used in the current experiment enabled the PCR programme consisting of 55 cycles to be completed in less than 40 minutes. Therefore the total sexing procedure could be performed in less than 90 minutes. The described method succeded in case of 85% analysed embryos.

18

Comparison of the nuclear organiser region activity in four taxa of the family Canidae

72%

Pienkowska A., Zagalska M.

Journal of Applied Genetics

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2001

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tom 42

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nr 4

19

Detection of the XXY trisomy in a bull by using sex chromosome painting probes

72%

Slota E., Kozubska-Sobocinska A., Koscielny M., Danielak-Czech B., Rejduch B.

Journal of Applied Genetics

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2003

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tom 44

|

nr 3

20

Comparative cytogenetic analysis of sex chromosomes in several Canidae species using Zoo-FISH

58%

Bugno-Poniewierska M., Sojecka A., Pawlina K., Jakubczak A., Jezewska-Witkowska G.

Folia Biologica

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2012

|

tom 60

|

nr 1-2

Ograniczanie wyników

A note on a mosaic bull with XY-XYY sex chromosomes

Comparative sex chromosome hybridizations in Ruminantia

Genome size in Humulus lupulus L. and H. japonicus Siebold and Zucc. [Cannabaceae]

Sex chromatin and Y chromosomes in dioecious species, Rumex acetosa L.

Genetic variability in goitred gazelle Gazella subgutturosa subgutturosa: allozymes and karyotypes

Seed sexing revealed female bias in two Rumex species

Application of spermatozoa from neo-males (XX) to induce androgenetic development in rainbow trout (Oncorhynchus mykiss)

Giant sex chromosomes retained within the Portuguese lineage of the field vole (Microtus agrestis)

Chromosome rearrangements and survival of androgenetic rainbow trout (Oncorhynchus mykiss)

Interspecies hybridizations in situ with bovine heterosome painting probes for identification of sex chromosomes in fallow deer (Dama dama)

Chromosome banding in Cacopsylla mali [Schmidberger] and Cacopsylla sorbi [Linnaeus] [Homoptera, Psyllidae] with polymorphic sex chromosomes

Meiosis of two species of Cacopsylla with polymorphic sex chromosomes in males [Homoptera, Psyllidae]

Sex chromosome meiotic drive in hybrid males of the common shrew [Sorex araneus]

Cytogenetic markers for X chromosome in a karyotype of rainbow trout from Rutki Strain [Poland]

Molecular techniques for sex identification in birds

Robertsonian translocation [8;14] in an infertile bitch [Canis familiaris]

The use amelogenin gene polymorphism in PCR embryo sexing in bovine IVF embryos

Comparison of the nuclear organiser region activity in four taxa of the family Canidae

Detection of the XXY trisomy in a bull by using sex chromosome painting probes

Comparative cytogenetic analysis of sex chromosomes in several Canidae species using Zoo-FISH