[PDF][PDF] Sperm wars and the evolution of male fertility
Females frequently mate with several males, whose sperm then compete to fertilize
available ova. Sperm competition represents a potent selective force that is expected to …
available ova. Sperm competition represents a potent selective force that is expected to …
Sexual selection and the evolution of sperm quality
Sperm experience intense and varied selection that dramatically impacts the evolution of
sperm quality. Selection acts to ensure that sperm are fertilization-competent and able to …
sperm quality. Selection acts to ensure that sperm are fertilization-competent and able to …
Comparative analysis of mammalian sperm ultrastructure reveals relationships between sperm morphology, mitochondrial functions and motility
NH Gu, WL Zhao, GS Wang, F Sun - Reproductive Biology and …, 2019 - Springer
Background Sperm morphology mainly refers to the shape of the head, the length of the
flagellar segments, including the midpiece, principal piece and end piece, and the size of …
flagellar segments, including the midpiece, principal piece and end piece, and the size of …
Sperm bauplan and function and underlying processes of sperm formation and selection
The spermatozoon is a highly differentiated and polarized cell, with two main structures: the
head, containing a haploid nucleus and the acrosomal exocytotic granule, and the flagellum …
head, containing a haploid nucleus and the acrosomal exocytotic granule, and the flagellum …
Importance of sperm morphology during sperm transport and fertilization in mammals
FA Garcia-Vazquez, J Gadea, C Matás… - Asian Journal of …, 2016 - journals.lww.com
After natural or artificial insemination, the spermatozoon starts a journey from the site of
deposition to the place of fertilization. However, only a small subset of the spermatozoa …
deposition to the place of fertilization. However, only a small subset of the spermatozoa …
Molecular control of luteal secretion of progesterone
GD Niswender - Reproduction, 2002 - rep.bioscientifica.com
Cholesterol provided by low-or high-density lipoprotein is the precursor for biosynthesis of
progesterone. Once inside the cell, cholesterol can be used for steroidogenesis or esterified …
progesterone. Once inside the cell, cholesterol can be used for steroidogenesis or esterified …
Effects of nutrient limitation on sperm and seminal fluid: A systematic review and meta‐analysis
Theory predicts that costly sexual traits should be reduced when individuals are in poor
condition (ie traits should exhibit condition‐dependent expression). It is therefore widely …
condition (ie traits should exhibit condition‐dependent expression). It is therefore widely …
Computer assisted sperm morphometry in mammals: a review
JL Yániz, C Soler, P Santolaria - Animal reproduction science, 2015 - Elsevier
Computer-assisted sperm morphometry analysis (CASMA or ASMA) systems were
developed to reduce the subjectivity of sperm morphology assessement. This review …
developed to reduce the subjectivity of sperm morphology assessement. This review …
Loss of the cleaved-protamine 2 domain leads to incomplete histone-to-protamine exchange and infertility in mice
L Arévalo, GE Merges, S Schneider, FE Oben… - PLoS …, 2022 - journals.plos.org
Protamines are unique sperm-specific proteins that package and protect paternal chromatin
until fertilization. A subset of mammalian species expresses two protamines (PRM1 and …
until fertilization. A subset of mammalian species expresses two protamines (PRM1 and …
Polyandry has no detectable mortality cost in female mammals
In several taxonomic groups, females mate with several males during a single reproductive
cycle. Although there is evidence that polyandry provides some benefits to females, it often …
cycle. Although there is evidence that polyandry provides some benefits to females, it often …