Genomewide association of male reproductive traits in Aksaray Malakli dogs

̇İnanç, Muhammed Enes; Tekin, Koray; Akkurt, Mustafa Yenal; Olğaç, Kemal Tuna; Yılmaz, Burak; Çil, Beste; Kızılaslan, Mehmet; Taşdemir, Umut; Tuncer, Pürhan Barbaros; Büyükleblebici, Serhat; Uysal, Ongun; Kul, Bengi Çinar

doi:10.1111/rda.13302

Cited by 3 publications

(2 citation statements)

References 41 publications

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“…Studying heritabilities of semen traits, h 2 indexes were calculated to be 0.57 for percentage of normal motility, 0.14 for sperm concentration, 0.21 for percentage of live morphologically normal sperm and 0.47 for the total number of live morphologically normal sperm, suggesting that selective breeding could be applied for semen quality improvement (England, Phillips, & Freeman, ). Male fertility parameters related to genitalia morphology and semen quality can be defined as quantitative traits, where the influence of the genotype with the small effect of many loci on the phenotype sum up with environmental factors (İnanç et al, )..…”

Section: Effective Population Size and Heritability Of Reproductive Tmentioning

confidence: 99%

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Canine fertility: The consequences of selection for special traits

Marelli

Beccaglia²,

Bagnato

et al. 2020

Reprod Domestic Animals

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Pedigree dogs and cats are bred aiming to conform breed standards with very poor consideration for breeding stock fertility. At the same time, the genetic asset underlining reproductive traits could be effectively analysed like in other species under selection. The definition of selection targets is very important in breeding proto-How to cite this article: Marelli SP, Beccaglia M, Bagnato A, Strillacci MG. Canine fertility: The consequences of selection for special traits.

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Section: Effective Population Size and Heritability Of Reproductive Tmentioning

confidence: 99%

“…This gene has an essential role in ciliary motility, and it affects the function of sperm flagella (Merveille et al, ). In addition, one intronic SNP of the autosome SFXN5 gene resulted significant for normal spermatozoa rate in Aksaray Malakli dogs in a GWAS (İnanç et al, ).…”

Section: Reproduction Traits and Genomicsmentioning

confidence: 99%

Canine fertility: The consequences of selection for special traits

Marelli

Beccaglia²,

Bagnato

et al. 2020

Reprod Domestic Animals

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No general effects of advancing male age on ejaculates: a meta-analysis across the animal kingdom

Sanghvi

Vega‐Trejo

Nakagawa³

et al. 2023

Preprint

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Senescence, the deterioration of organismal function with advancing age, is a puzzling biological phenomenon. While actuarial senescence (i.e., age-dependent increases in mortality rates) is well described across some taxa, reproductive senescence (i.e.age- dependent declines in reproduction) is less understood, especially in males, with mixed patterns reported across studies. To examine the evidence for male reproductive senescence, we investigated how advancing male age affects ejaculate traits across non-human animals via a meta-analysis yielding 1814 effect sizes from 379 studies. We found no evidence for a general pattern of reproductive senescence. Instead, we found high heterogeneity for how reproduction changes with male age across animals. Some of this heterogeneity (>10%) was associated with biological factors. For example, there were taxonomical differences for some ejaculate traits — sperm motility declined with male age in lab rodents and fish, whereas ejaculate size improved with male age in bulls, fish, and insects. Some methodological factors were also important in explaining this heterogeneity: studies sampling a larger proportion of a species’ lifespan were more likely to detect senescence in ejaculate traits, emphasising the need to examine the full life cycle of species to document senescence. Contrary to predictions, we reveal that the evidence for senescence in ejaculate traits is sporadic. Our findings will help generate novel hypotheses and identify more effective methodological approaches for studying male reproductive senescence.

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Malaklı Köpeği Spermasının Dondurulabilirliği Üzerine Karnosik Asitin Etkisi

ŞAHİN¹,

Yeni²,

Avdatek³

2021

Kocatepe Veterinary Journal

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The objective of the study was to determine the effect of carnosic acid, to Malakli Shepherd dog semen motility, morphology, viability and membran integrity parameters after frozen-thawed prosess. Five animal were used in this study and the sperm rich portion of the ejaculates were mixed and divided in to five equal groups. Each group extended with either tris as a control group and containing carnosic acid 10 µM, µM, 100 µM, 200 µM. Following equilibration for one and a half hour, the straws were frozen in nitrogen vapor and then stored in liquid nitrogen. Later, the frozen straws were thawed in a water bath for motility, morphology, viability and membran integrity parameters examination. The highest motilities and HOST-Eosin test results were detected in 10 µM group at 65.00±2.23 % and 69.83±0.70 % respectively, the lowest abnormal sperm rate were detected in 10 µM group at 9.50±1.52 % and the differences in these groups (p <0.05) were statistically significant compared to the control group. With regard conclusion, it was determined that the doses of 10 µM of carnosic acid added to extender in freezing of Malakli dog sperm showed a protective effect compared to the control group in terms of motility, spermatozoon morphology, membrane integrity and viability.

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Genomewide association of male reproductive traits in Aksaray Malakli dogs

Cited by 3 publications

References 41 publications

Canine fertility: The consequences of selection for special traits

Canine fertility: The consequences of selection for special traits

No general effects of advancing male age on ejaculates: a meta-analysis across the animal kingdom

Malaklı Köpeği Spermasının Dondurulabilirliği Üzerine Karnosik Asitin Etkisi

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