scholarly journals Karyotype and male meiosis in Spartocera batatas and meiotic behaviour of multiple sex chromosomes in Coreidae (Heteroptera)

2006 ◽  
Vol 103 (1) ◽  
pp. 9-16 ◽  
Author(s):  
Maria Jose FRANCO ◽  
Maria Jose BRESSA ◽  
Alba GRACIELA PAPESCHI
Keyword(s):  
Sex Chromosomes ◽  
Male Meiosis ◽  
Meiotic Behaviour ◽  
Multiple Sex Chromosomes

scholarly journals Multiple sex-chromosomes in the marsupial, Potorous

Heredity ◽  
1952 ◽  
Vol 6 (3) ◽  
pp. 345-355 ◽  
Author(s):  
G B Sharman ◽  
H N Barber
Keyword(s):  
Sex Chromosomes ◽  
Multiple Sex Chromosomes

Heteromorphic Sex Chromosomes and Their DNA Content in Fish: An Insight through Satellite DNA Accumulation in Megaleporinus elongatus

2020 ◽  
Vol 160 (1) ◽  
pp. 38-46 ◽  
Author(s):  
Carolina Crepaldi ◽  
Patricia P. Parise-Maltempi
Keyword(s):  
Sex Chromosomes ◽  
Dna Content ◽  
Satellite Dna ◽  
Sex Chromosome ◽  
Neotropical Fish ◽  
High Throughput Analysis ◽  
Multiple Sex Chromosomes ◽  
Heteromorphic Sex Chromosomes ◽  
Sex Chromosome System ◽  
Graph Based Clustering

The repetitive DNA content of fish sex chromosomes provides valuable insights into specificities and patterns of their genetic sex determination systems. In this study, we revealed the genomic satellite DNA (satDNA) content of Megaleporinuselongatus, a Neotropical fish species with Z1Z1Z2Z2/Z1W1Z2W2 multiple sex chromosomes, through high-throughput analysis and graph-based clustering, isolating 68 satDNA families. By physically mapping these sequences in female metaphases, we discovered 15 of the most abundant satDNAs clustered in its chromosomes, 9 of which were found exclusively in the highly heterochromatic W1. This heteromorphic sex chromosome showed the highest amount of satDNA accumulations in this species. The second most abundant family, MelSat02-26, shared FISH signals with the NOR-bearing pair in similar patterns and is linked to the multiple sex chromosome system. Our results demonstrate the diverse satDNA content in M. elongatus, especially in its heteromorphic sex chromosome. Additionally, we highlighted the different accumulation patterns and distribution of these sequences across species by physically mapping these satDNAs in other Anostomidae, Megaleporinusmacrocephalus and Leporinusfriderici (a species without differentiated sex chromosomes).

scholarly journals The Origin of Multiple Sex Chromosomes in Tiger Beetles

2002 ◽  
Vol 19 (10) ◽  
pp. 1792-1796 ◽  
Author(s):  
Jose Galián ◽  
James E. Hogan ◽  
Alfried P. Vogler
Keyword(s):  
Sex Chromosomes ◽  
Tiger Beetles ◽  
Multiple Sex Chromosomes

scholarly journals System of Multiple Sex Chromosomes in Eigenmannia trilineata López & Castello, 1966 (Sternopygidae, Gymnotiformes) from Iguatemi River Basin, MS, Brazil

CYTOLOGIA ◽  
2010 ◽  
Vol 75 (4) ◽  
pp. 463-466 ◽  
Author(s):  
Carlos Alexandre Fernandes ◽  
Dayani Bailly ◽  
Valéria Flávia Batista da Silva ◽  
Isabel Cristina Martins-Santos
Keyword(s):  
River Basin ◽  
Sex Chromosomes ◽  
Multiple Sex Chromosomes

scholarly journals Studies on Metatherian Sex Chromosomes. IX. Sex Chromosomes of the Greater Glider (Marsupialia : Petauridae)

1979 ◽  
Vol 32 (3) ◽  
pp. 375 ◽  
Author(s):  
JD Murray ◽  
GM McKay ◽  
GB Sharman
Keyword(s):  
X Chromosome ◽  
Sex Chromosomes ◽  
National Park ◽  
Secondary Constriction ◽  
X Chromosomes ◽  
Cultured Fibroblasts ◽  
Multiple Sex Chromosomes ◽  
Eastern Australia ◽  
Xy Bivalent ◽  
Secondary Constrictions

The greater glider, currently but incorrectly known as Schoinobates vo/ans, is widely distributed in forested regions in eastern Australia. All animals studied from six different localities had 20 autosomes but there were four chromosomally distinct populations. At Royal National Park, N.S.W., all female greater gliders studied had 22 chromosomes including two large submetacentric X chromosomes with subterminal secondary constrictions in their longer arms. This form of X chromosome occurred also at Bondo State Forest, Myall Lakes and Coff's Harbour, N.S.W., and at Eidsvold, Qld. At Coomooboolaroo, Qld, the X chromosome was also a large submetacentric but a secondary constriction occurred in the shorter arm. Two chromosomally distinct types apparently occur in Royal National Park, one with XY m,ales as in all other populations, and one with XY1Y2 males. Y or Yb but not Y 2, chromosomes were eliminated from the bone marrow in all populations but were present in spermatogonia, primary sperrnatocytes and cultured fibroblasts. Animals from Bondo State Forest had three or more acrocentric or metacentric supernumerary chromosomes. [Other keywords: C-banding, eytotaxonomy, multiple sex chromosomes, XY bivalent.]

The origin of multiple sex chromosomes in the gerbil Gerbillus gerbillus (Rodentia: Gerbillinae)

1983 ◽  
Vol 35 (3) ◽  
pp. 161-180 ◽  
Author(s):  
J. Wahrman ◽  
C. Richler ◽  
E. Neufeld ◽  
A. Friedmann
Keyword(s):  
Sex Chromosomes ◽  
Multiple Sex Chromosomes
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