Karyotype evolution of giraffes (Giraffa camelopardalis) revealed by cross-species chromosome painting with Chinese muntjac (Muntiacus reevesi) and human (Homo sapiens) paints

2008 ◽  
Vol 122 (2) ◽  
pp. 132-138 ◽  
Author(s):  
L. Huang ◽  
A. Nesterenko ◽  
W. Nie ◽  
J. Wang ◽  
W. Su ◽  
...  
Genome ◽  
1999 ◽  
Vol 42 (3) ◽  
pp. 525-530 ◽  
Author(s):  
RJ Waugh O'Neill ◽  
MDB Eldridge ◽  
R Toder ◽  
MA Ferguson-Smith ◽  
P C O'Brien ◽  
...  

Marsupial mammals show extraordinary karyotype stability, with 2n = 14 considered ancestral. However, macropodid marsupials (kangaroos and wallabies) exhibit a considerable variety of karyotypes, with a hypothesised ancestral karyotype of 2n = 22. Speciation and karyotypic diversity in rock wallabies (Petrogale) is exceptional. We used cross species chromosome painting to examine the chromosome evolution between the tammar wallaby (2n = 16) and three 2n = 22 rock wallaby species groups with the putative ancestral karyotype. Hybridization of chromosome paints prepared from flow sorted chromosomes of the tammar wallaby to Petrogale spp., showed that this ancestral karyotype is largely conserved among 2n = 22 rock wallaby species, and confirmed the identity of ancestral chromosomes which fused to produce the bi-armed chromosomes of the 2n = 16 tammar wallaby. These results illustrate the fission-fusion process of karyotype evolution characteristic of the kangaroo group.


2009 ◽  
Vol 126 (3) ◽  
pp. 281-304 ◽  
Author(s):  
T. Hansmann ◽  
I. Nanda ◽  
V. Volobouev ◽  
F. Yang ◽  
M. Schartl ◽  
...  

2007 ◽  
Vol 15 (7) ◽  
pp. 835-848 ◽  
Author(s):  
Xiuguang Mao ◽  
Wenhui Nie ◽  
Jinhuan Wang ◽  
Weiting Su ◽  
Lei Ao ◽  
...  

2009 ◽  
Vol 17 (3) ◽  
pp. 419-436 ◽  
Author(s):  
Anastasia I. Kulemzina ◽  
Vladimir A. Trifonov ◽  
Polina L. Perelman ◽  
Nadezhda V. Rubtsova ◽  
Vitaly Volobuev ◽  
...  

2005 ◽  
Vol 13 (4) ◽  
pp. 389-399 ◽  
Author(s):  
Ling Huang ◽  
Wenhui Nie ◽  
Jinhuan Wang ◽  
Weiting Su ◽  
Fengtang Yang

CYTOLOGIA ◽  
2008 ◽  
Vol 73 (4) ◽  
pp. 349-355 ◽  
Author(s):  
Wiwat Sangpakdee ◽  
Alongkoad Tanomtong ◽  
Monthira Monthatong ◽  
Krit Pinthong ◽  
Bhuvadol Gomontean ◽  
...  

2018 ◽  
Vol 5 (8) ◽  
pp. 171539 ◽  
Author(s):  
Fumio Kasai ◽  
Patricia C. M. O'Brien ◽  
Jorge C. Pereira ◽  
Malcolm A. Ferguson-Smith

Extensive chromosome homologies revealed by cross-species chromosome painting between marsupials have suggested a high level of genome conservation during evolution. Surprisingly, it has been reported that marsupial genome sizes vary by more than 1.2 Gb between species. We have shown previously that individual chromosome sizes and GC content can be measured in flow karyotypes, and have applied this method to compare four marsupial species. Chromosome sizes and GC content were calculated for the grey short-tailed opossum (2 n = 18), tammar wallaby (2 n = 16), Tasmanian devil (2 n = 14) and fat-tailed dunnart (2 n = 14), resulting in genome sizes of 3.41, 3.31, 3.17 and 3.25 Gb, respectively. The findings under the same conditions allow a comparison between the four species, indicating that the genomes of these four species are 1–8% larger than human. We show that marsupial genomes are characterized by a low GC content invariable between autosomes and distinct from the higher GC content of the marsupial × chromosome.


2019 ◽  
Vol 157 (1-2) ◽  
pp. 123-131 ◽  
Author(s):  
Alessio Iannucci ◽  
Marie Altmanová ◽  
Claudio Ciofi ◽  
Malcolm Ferguson-Smith ◽  
Jorge C. Pereira ◽  
...  

We developed new tools to build a high-quality chromosomal map of the Komodo dragon (Varanus komodoensis) available for cross-species phylogenomic analyses. First, we isolated chromosomes by flow sorting and determined the chromosome content of each flow karyotype peak by FISH. We then isolated additional Komodo dragon chromosomes by microdissection and amplified chromosome-specific DNA pools. The chromosome-specific DNA pools can be sequenced, assembled, and mapped by next-generation sequencing technology. The chromosome-specific paint probes can be used to investigate karyotype evolution through cross-species chromosome painting. Overall, the set of chromosome-specific DNA pools of V. komodoensis provides new tools for detailed phylogenomic analyses of Varanidae and squamates in general.


Genes ◽  
2018 ◽  
Vol 9 (4) ◽  
pp. 181 ◽  
Author(s):  
Rafael Kretschmer ◽  
Malcolm Ferguson-Smith ◽  
Edivaldo de Oliveira

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