Abalone lysin: the dissolving and evolving sperm protein

Kresge, Nicole; Vacquier, Victor D.; Stout, C.D.

doi:10.1002/1521-1878(200101)23:1<95::aid-bies1012>3.0.co;2-c

Cited by 60 publications

(52 citation statements)

References 38 publications

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“…For example, in abalones, a meeting of a sperm and egg begins with exocytosis of the sperm acrosome (releasing lysin) in the egg jelly coat, continues with penetration of the sperm through the egg vitelline envelope (mediated by lysin and VERL), and ends with fusion of the sperm and egg membranes (Kresge et al 2001). Progress toward fertilization may halt at any of these steps.…”

Section: Ore Locimentioning

confidence: 99%

“…Several pairs of proteins are suspected of mediating sexual conflict. For example, in abalones and sea urchins, the strength of binding between certain sperm and egg proteins affects the frequency of fertilization when a sperm and egg meet (Metz et al 1994, Palumbi 1999Kresge et al 2001); mutations in the sperm proteins may be favored if they raise the frequency of fertilization and hence of victory in sperm competition, whereas mutations in the egg proteins may be favored if they lower the frequency of fertilization and hence of death by polyspermy (Rice and Holland 1997).…”

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confidence: 99%

“…For example, the abalone sperm protein lysin is one of the fastest-evolving proteins known. A large excess of nonsynonymous substitutions per nucleotide site compared to synonymous ones between species indicates that lysin evolution is driven by strong selection (Kresge et al 2001). The abalone egg protein VERL (vitelline envelope receptor of lysin) also evolves rapidly, and the evolution of at least some parts of VERL is driven by selection (Galindo et al 2003).…”

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confidence: 99%

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Sexual Conflict and Protein Polymorphism

Haygood¹

2004

Evolution

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Abstract. Sexual conflict, where male and female reproductive interests differ, is probably widespread and often mediated by male or sperm proteins and female or egg proteins that bind to each other during mating or fertilization. One potential consequence is maintenance of polymorphism in these proteins, which might result in reproductive isolation between sympatric subpopulations. I investigate the conditions for polymorphism maintenance in a series of mathematical models of sexual conflict over mating or fertilization frequency. The models represent a male or sperm ligand and a female or egg receptor, and they differ in whether expression of either protein is haploid or diploid. For diploid expression, the conditions imply that patterns of dominance, which involve neither overdominance nor underdominance, can determine whether polymorphism is maintained. For example, suppose ligand expression is diploid, and consider ligand alleles L 1 and L 2 in interactions with a given receptor genotype; if L 1 /L 1 males are fitter than L 2 /L 2 males in these interactions, then polymorphism is more likely to be maintained when L 1 /L 2 males more closely resemble L 1 /L 1 males in these interactions. Such fitter-allele dominance might be typical of a ligand or its receptor due to their biochemistry, in which case polymorphism might be typical of the pair.

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Section: Ore Locimentioning

confidence: 99%

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confidence: 99%

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Sexual Conflict and Protein Polymorphism

Haygood¹

2004

Evolution

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“…Research over the past two decades has shown that these interactions govern at least some aspect of each question above. In cases such as the spawning abalone (1,2) and the disinterested female fly, (3,4) the causative proteins and molecular interactions are clear, but most reproductive phenotypes and behaviors remain unexplained at the molecular level.…”

Section: Introductionmentioning

confidence: 99%

Proteomics enhances evolutionary and functional analysis of reproductive proteins

Findlay

Swanson

2009

BioEssays

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Reproductive proteins maintain species-specific barriers to fertilization, affect the outcome of sperm competition, mediate reproductive conflicts between the sexes, and potentially contribute to the formation of new species. However, the specific proteins and molecular mechanisms that underlie these processes are understood in only a handful of cases. Advances in genomic and proteomic technologies enable the identification of large suites of reproductive proteins, making it possible to dissect reproductive phenotypes at the molecular level. We first review these technological advances and describe how reproductive proteins are identified in diverse animal taxa. We then discuss the dynamic evolution of reproductive proteins and the potential selective forces that act on them. Finally, we describe molecular and genomic tools for functional analysis and detail how evolutionary data may be used to make predictions about interactions among reproductive proteins.

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“…These mechanisms have been studied extensively in the abalone genus Haliotus, in which successful fertilization depends on the complex interaction between the egg protein VERL ("Vitelline Envelope Receptor for Lysin") and the sperm protein lysin (Kresge et al, 2001). Molecular analyses of these proteins revealed signatures of strong selection, indicating rapid evolution (Lee et al, 1995, Swanson andVacquier, 1998).…”

Section: (B) Temporal Isolationmentioning

confidence: 99%

Crossing species boundaries : the hybrid histories of the true geese

Ottenburghs¹

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. Crossing Species Boundaries: The Hybrid Histories of the True Geese. PhD thesis, Wageningen University, the Netherlands. Hybridization, the interbreeding of different species, is a common phenomenon in birds: about 16% of bird species is known to have hybridized with at least one other species. Numerous avian hybrid zones have been studied from a morphological or genetic perspective, often documenting the interspecific exchange of genetic material by hybridization and backcrossing (i.e. introgression). The incidence of hybridization varies among bird orders with the Anseriformes (waterfowl: ducks, geese and swans) showing the highest propensity to hybridize. In this thesis, I provide a genomic perspective on the role of hybridization in the evolutionary history of one particular anseriform tribe, the Anserini or "True Geese", which comprises 17 species divided over two genera: Anser and Branta . The diversification of this bird group took place in the late Pliocene and the early Pleistocene (between four and two million years ago), conceivably driven by a global cooling trend that led to the establishment of a circumpolar tundra belt and the emergence of temperate grasslands. Most species show a steady population increase during this period, followed by population subdivision during the Last Glacial Maximum about 110,000 to 12,000 years ago. The combination of large effective population sizes and occasional range shifts facilitated contact between the diverging goose species, resulting in high levels of interspecific gene flow. Introgressive hybridization might have enabled these goose populations to quickly adapt to changing environments by transferring of advantageous alleles across species boundaries, increasing standing genetic variation or expanding phenotypic variation of certain traits (e.g., beak morphology). Hybridization seems to be a common and integral component in the evolution and diversification of geese. The pervasiveness of rapid speciation and hybridization in geese complicates the attempt to capture their evolutionary history in a phylogenetic tree, therefore I advocate a phylogenetic network approach. Indeed, trying to capture the complex diversification of the True Geese in a branching tree can be regarded as a wild goose chase. Abstract TABLE OF CONTENTS

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Abalone lysin: the dissolving and evolving sperm protein

Cited by 60 publications

References 38 publications

Sexual Conflict and Protein Polymorphism

Sexual Conflict and Protein Polymorphism

Proteomics enhances evolutionary and functional analysis of reproductive proteins

Crossing species boundaries : the hybrid histories of the true geese

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