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Analysis of meiotic segregation patterns and interchromosomal effects in sperm from 13 robertsonian translocations Cover

Analysis of meiotic segregation patterns and interchromosomal effects in sperm from 13 robertsonian translocations

By: B Wang,  B Nie,  D Tang,  R Li,  X Liu,  J Song,  W Wang and  Z Liu  
Open Access
|Jun 2017

Figures & Tables

Figure 1

Karyotype of P1: 44, XY, der(14;15)(q10; q10), der(14;15)(q10;q10), carrying a disomy for the ROB translocation chromosome (highlighted by arrows).
Karyotype of P1: 44, XY, der(14;15)(q10; q10), der(14;15)(q10;q10), carrying a disomy for the ROB translocation chromosome (highlighted by arrows).

Figure 2

Sperm cells after hybridization with TelVysion 14q32.33 (Spectrum Red) and TelVysion 15q26.3 (Spectrum Green). The sperm highlighted with a red arrow may be a diploid sperm.
Sperm cells after hybridization with TelVysion 14q32.33 (Spectrum Red) and TelVysion 15q26.3 (Spectrum Green). The sperm highlighted with a red arrow may be a diploid sperm.

Cytogenetic and spermiologic results of patients and controls_

PatientKaryotypeAge (years)Sperm Concentration (106/L)Motility

Sperm motility was graded from a to d, according to the WHO manual criteria, as follows. Grade a (fast progressive) sperms are those that swim forward fast in a straight line, like guided missiles. Grade b (slow progressive) sperms swim forward, but either in a curved or crooked line, or slowly (slow linear or non linear motility). Grade c (non progressive) sperms move their tails, but do not move forward (local motility only). Grade d (immotile) sperms do not move at all. The (a+b)% represent the percentage of sperm that can move forward normally.

(a+b)%
P144, XY, der(14;15)(q10;q10), der(14;15)(q10;q10)2556.053.0
P245, XY, der(14;15)(q10;q10)4813.022.0
P345, XY, der(13;14)(q10;q10)2919.025.0
P445, XY, der(13;14)(q10;q10)3122.017.0
P545, XY, der(13;14)(q10;q10)2738.021.0
P645, XY, der(13;14)(q10;q10)3557.059.0
P745, XY, der(13;14)(q10;q10)3389.038.0
P845, XY, der(13;14)(q10;q10)3035.029.0
P945, XY, der(14;21)(q10;q10)3640.035.0
P1045, XY, der(14;21)(q10;q10)3237.036.0
P1145, XY, der(14;21)(q10;q10)2642.045.0
P1245, XY, der(13;22)(q10;q10)2628.039.0
P1345, XY, der(21;22)(q10;q10)2931.047.0
C146, XY3577.044.0
C246, XY2762.047.0
C346, XY3343.039.0

Incidence of sperm nullisomy, disomy and diploid for chromosomes 18, X and Y in 13 Robertsonian translocation carriers and three controls_

Normal/BalancedNullisomy 18Disomy 18Nullisomy Sex ChromosomeDisomy Sex Chromosome3:0 or DiploidUnbalancedTotal
P19940123061000
P294932151021411000
P3899652221471011000
P495245171210481000
P5913119131539871000
P694772151712531000
P79559121059451000
P89012113241922991000
D/D mean9318.76.916.614.122.967.7
P9976344211241000
P1098521363151000
P11963649117371000
P129447581125561000
D/G mean9674.53.56.07.511.533.0
P1397776145231000
C19950211151000
C29971020031000
C39910231391000
Control mean9940.31.32.00.71.35.7

The number of spermatozoa scored, the alternate mode of segregation, incidence of sperm nullisomy, disomy and 3:0/diploid for the chromosomes involved in the Robertsonian translocation in 13 Robertsonian translocation carriers and three controls_

Normal/BalancedNullisomy ADisomy ANullisomy BDisomy B3:0 or DiploidUnbalancedTotal
P19972000131000
P279941495545112011000
P38522457342671481000
P48096830552991911000
P584340392741101571000
P675755379442152431000
P783729663421131631000
P878275614922112181000
D/D mean81147.048.050.032.011.0189.0
P977541507045192251000
P10721663711045212791000
P1170447567395252961000
P1271969756258172811000
D/G mean73056.055.079.061.021.0270.0
P1376847514280122321000
C19950211151000
C29971020031000
C39950201251000
Control mean9960.31.31.00.71.04.3
Language: English
Page range: 43 - 50
Published on: Jun 30, 2017
Published by: Macedonian Academy of Sciences and Arts
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year

© 2017 B Wang, B Nie, D Tang, R Li, X Liu, J Song, W Wang, Z Liu, published by Macedonian Academy of Sciences and Arts
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.