TY - JOUR

T1 - The Molecular Mechanisms of Gametic Incompatibility in Invertebrates

AU - Lobov, A.A.

AU - Maltseva, A.L.

AU - Mikhailova, N.A.

AU - Granovitch, A.I.

PY - 2019/11/14

Y1 - 2019/11/14

N2 - Fertilization (gamete fusion followed by zygote formation) is a multistage process. Each stage is mediated by ligand-receptor recognition of gamete interaction molecules. This recognition includes the movement of sperm in the gradient of egg chemoattractants, destruction of the egg envelope by acrosomal proteins, etc. Gametic incompatibility is one of the mechanisms of reproductive isolation. It is based on species-specific molecular interactions that prevent heterospecific fertilization. Although gametic incompatibility may occurin any sexually reproducing organism, it has been studied only in a few model species. Gamete interactions in different taxa involve generally similar processes, but they often employ non-homologous molecules. Gameterecognition proteins evolve rapidly, like immunity proteins, and include many taxon-specific families. In fact, recently appeared proteins particularly contribute to reproductive isolation via gametic incompatibility. Thus, we can assume a multiple, independent origin of this type of reproductive isolation throughout animal evolution. Gametic incompatibility can be achieved at any fertilization stage and entails different consequences at different taxonomic levels and ranges, from complete incompatibility between closely related species to partial incompatibility between distantly related taxa.

AB - Fertilization (gamete fusion followed by zygote formation) is a multistage process. Each stage is mediated by ligand-receptor recognition of gamete interaction molecules. This recognition includes the movement of sperm in the gradient of egg chemoattractants, destruction of the egg envelope by acrosomal proteins, etc. Gametic incompatibility is one of the mechanisms of reproductive isolation. It is based on species-specific molecular interactions that prevent heterospecific fertilization. Although gametic incompatibility may occurin any sexually reproducing organism, it has been studied only in a few model species. Gamete interactions in different taxa involve generally similar processes, but they often employ non-homologous molecules. Gameterecognition proteins evolve rapidly, like immunity proteins, and include many taxon-specific families. In fact, recently appeared proteins particularly contribute to reproductive isolation via gametic incompatibility. Thus, we can assume a multiple, independent origin of this type of reproductive isolation throughout animal evolution. Gametic incompatibility can be achieved at any fertilization stage and entails different consequences at different taxonomic levels and ranges, from complete incompatibility between closely related species to partial incompatibility between distantly related taxa.

KW - Gamete recognition proteins

KW - gametic isolation

KW - PCPZ

KW - invertebrates

KW - Reproductive isolation

KW - reproductive proteins

KW - Gamete recognition proteins

KW - gametic incompatibility

KW - Gametic isolation

KW - Reproductive isolation

KW - speciation

KW - invertebrates

KW - gametic isolation

KW - CHEMICAL-ASPECTS

KW - gamete recognition proteins

KW - reproductive isolation

KW - ACTIVATING PEPTIDES

KW - CONSPECIFIC SPERM PRECEDENCE

KW - LITTORINA-SAXATILIS

KW - SEA-URCHINS

KW - SPECIES-SPECIFICITY

KW - VITELLINE ENVELOPE

KW - ACROSOME REACTION

KW - ARCANA HANNAFORD ELLIS

KW - REPRODUCTIVE ISOLATION

U2 - 10.32607/20758251-2019-11-3-4-15

DO - 10.32607/20758251-2019-11-3-4-15

M3 - Review article

C2 - 31720011

VL - 11

SP - 4

EP - 15

JO - Acta Naturae

JF - Acta Naturae

SN - 2075-8251

IS - 3

ER -