Meiotic behavior of the X1X2Y1Y2 quadrivalent of the primate Alouatta caraya
A multiple sex chromosome system was found in three unrelated individuals of the primate Alouatta caraya. This mechanism is originated by a translocation between the Y chromosome and one of the autosomes (A7). Mitotic karyotypes show two small, acrocentric chromosomes (A(Y) and Y(A)), which are the...
Guardado en:
| Autores principales: | , , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_09673849_v4_n5_p350_Rahn |
| Aporte de: |
| id |
todo:paper_09673849_v4_n5_p350_Rahn |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_09673849_v4_n5_p350_Rahn2023-10-03T15:55:08Z Meiotic behavior of the X1X2Y1Y2 quadrivalent of the primate Alouatta caraya Rahn, M.I. Mudry, M. Merani, M.S. Solari, A.J. Alouatta caraya Multiple sex chromosomes Quadrivalent analysis Synaptonemal complex acrocentric chromosome article autosome centromere chromatin chromosome translocation karyotype male meiosis metaphase monkey nonhuman pachytene priority journal sex chromosome synaptonemal complex Y chromosome Alouatta Alouatta caraya Primates A multiple sex chromosome system was found in three unrelated individuals of the primate Alouatta caraya. This mechanism is originated by a translocation between the Y chromosome and one of the autosomes (A7). Mitotic karyotypes show two small, acrocentric chromosomes (A(Y) and Y(A)), which are the translocation products. In metaphase I of male meiosis, there is a very long chain quadrivalent in which the order of the element is: X-Y(A)-A7-A(Y). Segregation in the quadrivalent is alternate and gives balanced products. Synaptonemal complex karyotypes at pachytene show the structure of the quadrivalent made by the four axes. There is a slight difference in the relative length of A(Y) and Ya and the kinetochore of A7 aligns with that of A(Y). The synaptic pattern and changes in the quadrivalent during pachytene are described. Thin sections of the quadrivalent body show that the chromatin packing in the sex chromosome region is different from that of the autosomal region. This X1X2Y1Y2/X1X1XX2 sex chromosome system may be extended among other members of the genus Alouatta. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09673849_v4_n5_p350_Rahn |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Alouatta caraya Multiple sex chromosomes Quadrivalent analysis Synaptonemal complex acrocentric chromosome article autosome centromere chromatin chromosome translocation karyotype male meiosis metaphase monkey nonhuman pachytene priority journal sex chromosome synaptonemal complex Y chromosome Alouatta Alouatta caraya Primates |
| spellingShingle |
Alouatta caraya Multiple sex chromosomes Quadrivalent analysis Synaptonemal complex acrocentric chromosome article autosome centromere chromatin chromosome translocation karyotype male meiosis metaphase monkey nonhuman pachytene priority journal sex chromosome synaptonemal complex Y chromosome Alouatta Alouatta caraya Primates Rahn, M.I. Mudry, M. Merani, M.S. Solari, A.J. Meiotic behavior of the X1X2Y1Y2 quadrivalent of the primate Alouatta caraya |
| topic_facet |
Alouatta caraya Multiple sex chromosomes Quadrivalent analysis Synaptonemal complex acrocentric chromosome article autosome centromere chromatin chromosome translocation karyotype male meiosis metaphase monkey nonhuman pachytene priority journal sex chromosome synaptonemal complex Y chromosome Alouatta Alouatta caraya Primates |
| description |
A multiple sex chromosome system was found in three unrelated individuals of the primate Alouatta caraya. This mechanism is originated by a translocation between the Y chromosome and one of the autosomes (A7). Mitotic karyotypes show two small, acrocentric chromosomes (A(Y) and Y(A)), which are the translocation products. In metaphase I of male meiosis, there is a very long chain quadrivalent in which the order of the element is: X-Y(A)-A7-A(Y). Segregation in the quadrivalent is alternate and gives balanced products. Synaptonemal complex karyotypes at pachytene show the structure of the quadrivalent made by the four axes. There is a slight difference in the relative length of A(Y) and Ya and the kinetochore of A7 aligns with that of A(Y). The synaptic pattern and changes in the quadrivalent during pachytene are described. Thin sections of the quadrivalent body show that the chromatin packing in the sex chromosome region is different from that of the autosomal region. This X1X2Y1Y2/X1X1XX2 sex chromosome system may be extended among other members of the genus Alouatta. |
| format |
JOUR |
| author |
Rahn, M.I. Mudry, M. Merani, M.S. Solari, A.J. |
| author_facet |
Rahn, M.I. Mudry, M. Merani, M.S. Solari, A.J. |
| author_sort |
Rahn, M.I. |
| title |
Meiotic behavior of the X1X2Y1Y2 quadrivalent of the primate Alouatta caraya |
| title_short |
Meiotic behavior of the X1X2Y1Y2 quadrivalent of the primate Alouatta caraya |
| title_full |
Meiotic behavior of the X1X2Y1Y2 quadrivalent of the primate Alouatta caraya |
| title_fullStr |
Meiotic behavior of the X1X2Y1Y2 quadrivalent of the primate Alouatta caraya |
| title_full_unstemmed |
Meiotic behavior of the X1X2Y1Y2 quadrivalent of the primate Alouatta caraya |
| title_sort |
meiotic behavior of the x1x2y1y2 quadrivalent of the primate alouatta caraya |
| url |
http://hdl.handle.net/20.500.12110/paper_09673849_v4_n5_p350_Rahn |
| work_keys_str_mv |
AT rahnmi meioticbehaviorofthex1x2y1y2quadrivalentoftheprimatealouattacaraya AT mudrym meioticbehaviorofthex1x2y1y2quadrivalentoftheprimatealouattacaraya AT meranims meioticbehaviorofthex1x2y1y2quadrivalentoftheprimatealouattacaraya AT solariaj meioticbehaviorofthex1x2y1y2quadrivalentoftheprimatealouattacaraya |
| _version_ |
1782027442915901440 |