Male horse meiosis: metaphase I chromosome configuration and chiasmata distribution. Academic Article

abstract

• Chromosome configurations and chiasma frequency during the metaphase I stage of spermatogenesis in the male horse are characterized in this work. The genome-wide frequency and distribution of chiasmata was detected as 49.45 2.07 for 14 fertile stallions. All X and Y chromosomes shared a single chiasma at their pseudoautosomal region, while 1-4 chiasmata were observed in autosomal chromosomes. The chiasma frequency and distribution were further studied for 8 different bivalents identified by FISH in 5 fertile stallions. Genetic length was calculated from chiasmata data for the whole genome as well as for these 8 chromosomes. The findings complement the genetic linkage data and provide insight into the genetic basis of spermatogenesis in normal stallions.

authors

• Raudsepp, Terje

published proceedings

• Cytogenet Genome Res

author list (cited authors)

• Al-Jaru, A., Goodwin, W., Skidmore, J., Raudsepp, T., & Khazanehdari, K.

citation count

• 2

complete list of authors

• Al-Jaru, Ayman||Goodwin, William||Skidmore, Julian||Raudsepp, Terje||Khazanehdari, Kamal

publication date

• January 2014

publisher

• Karger Publishers  Publisher

keywords

• Animals
• Castration
• Cell Nucleus
• Chromosome Segregation
• Chromosomes, Mammalian
• Crossing Over, Genetic
• Horses
• In Situ Hybridization, Fluorescence
• Male
• Meiosis
• Metaphase
• Sister Chromatid Exchange
• Spermatogenesis

PubMed Central ID

• 25196893

Digital Object Identifier (DOI)

• 10.1159/000365910

start page

• 225

end page

• 231

volume

• 143

issue

• 4

URL

• http%3A%2F%2Fdx.doi.org%2F10.1159%2F000365910