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Differences in the fatty-acid composition of rodent spermatozoa are associated to levels of sperm competition.

delBarco-Trillo J, Mateo R, Roldan ER - Biol Open (2015)

Bottom Line: To test these predictions, we quantified the fatty-acid composition of sperm, testis and liver cells in four mouse species (genus Mus) that differ in their levels of sperm competition.Fatty-acid composition in testis and liver cells was not associated to sperm competition levels.Two particular fatty acids were most responsible for this pattern (arachidonic acid and palmitic acid).

View Article: PubMed Central - PubMed

Affiliation: Reproductive Ecology and Biology Group, Museo Nacional de Ciencias Naturales, CSIC, 28006 Madrid, Spain Present address: School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool L3 5UA, UK. delbarcotrillo@gmail.com.

No MeSH data available.


Related in: MedlinePlus

Percentage of saturated and polyunsaturated fatty acids.The percentage of saturated fatty acids (A–C) and polyunsaturated fatty acids (D–F) are shown for liver, testis and sperm. The modified boxplots present the following information: the bar within each box represents the sample median, each box represents 50% of the data around the median, and the two whiskers around each box represent the 95% confidence interval (n = 5 for each species, except n = 4 in the case of sperm data for M. spretus); circles represent outliers.
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f02: Percentage of saturated and polyunsaturated fatty acids.The percentage of saturated fatty acids (A–C) and polyunsaturated fatty acids (D–F) are shown for liver, testis and sperm. The modified boxplots present the following information: the bar within each box represents the sample median, each box represents 50% of the data around the median, and the two whiskers around each box represent the 95% confidence interval (n = 5 for each species, except n = 4 in the case of sperm data for M. spretus); circles represent outliers.

Mentions: The % SFAs differed among species in the three tissue types (liver: F3,16 = 4.04, p = 0.03, Fig. 2A; testis: F3,16 = 4.26, p = 0.02, Fig. 2B; sperm: F3,15 = 9.9, p = 0.0007, Fig. 2C). A pattern matching values of RTS in the four species was only apparent in spermatozoa, but not in testis and liver cells, with sperm cells in M. pahari (39.49±3.34%) and M. musculus (44.07±3.45%) having significantly lower % SFAs than those of M. spretus (57.78±9.49%) and M. spicilegus (56.84±7.04%; p<0.05 for all pairwise comparisons; Fig. 2C; Table 1). Thus, species with high RTS have higher percentage of SFAs in sperm cells.


Differences in the fatty-acid composition of rodent spermatozoa are associated to levels of sperm competition.

delBarco-Trillo J, Mateo R, Roldan ER - Biol Open (2015)

Percentage of saturated and polyunsaturated fatty acids.The percentage of saturated fatty acids (A–C) and polyunsaturated fatty acids (D–F) are shown for liver, testis and sperm. The modified boxplots present the following information: the bar within each box represents the sample median, each box represents 50% of the data around the median, and the two whiskers around each box represent the 95% confidence interval (n = 5 for each species, except n = 4 in the case of sperm data for M. spretus); circles represent outliers.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4400589&req=5

f02: Percentage of saturated and polyunsaturated fatty acids.The percentage of saturated fatty acids (A–C) and polyunsaturated fatty acids (D–F) are shown for liver, testis and sperm. The modified boxplots present the following information: the bar within each box represents the sample median, each box represents 50% of the data around the median, and the two whiskers around each box represent the 95% confidence interval (n = 5 for each species, except n = 4 in the case of sperm data for M. spretus); circles represent outliers.
Mentions: The % SFAs differed among species in the three tissue types (liver: F3,16 = 4.04, p = 0.03, Fig. 2A; testis: F3,16 = 4.26, p = 0.02, Fig. 2B; sperm: F3,15 = 9.9, p = 0.0007, Fig. 2C). A pattern matching values of RTS in the four species was only apparent in spermatozoa, but not in testis and liver cells, with sperm cells in M. pahari (39.49±3.34%) and M. musculus (44.07±3.45%) having significantly lower % SFAs than those of M. spretus (57.78±9.49%) and M. spicilegus (56.84±7.04%; p<0.05 for all pairwise comparisons; Fig. 2C; Table 1). Thus, species with high RTS have higher percentage of SFAs in sperm cells.

Bottom Line: To test these predictions, we quantified the fatty-acid composition of sperm, testis and liver cells in four mouse species (genus Mus) that differ in their levels of sperm competition.Fatty-acid composition in testis and liver cells was not associated to sperm competition levels.Two particular fatty acids were most responsible for this pattern (arachidonic acid and palmitic acid).

View Article: PubMed Central - PubMed

Affiliation: Reproductive Ecology and Biology Group, Museo Nacional de Ciencias Naturales, CSIC, 28006 Madrid, Spain Present address: School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool L3 5UA, UK. delbarcotrillo@gmail.com.

No MeSH data available.


Related in: MedlinePlus