scholarly journals Patterns of reproductive isolation in a haplodiploid - strong post-mating, prezygotic barriers among three forms of a social spider mite

2018 ◽  
Vol 31 (6) ◽  
pp. 866-881 ◽  
Author(s):  
Yukie Sato ◽  
Hironori Sakamoto ◽  
Tetsuo Gotoh ◽  
Yutaka Saito ◽  
Jung-Tai Chao ◽  
...  
Keyword(s):  
Reproductive Isolation ◽  
Spider Mite ◽  
Social Spider ◽  
Prezygotic Barriers

scholarly journals Patterns of reproductive isolation in a haplodiploid mite, Amphitetranychus viennensis: prezygotic isolation, hybrid inviability and hybrid sterility

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yukie Sato ◽  
Satoshi Fujiwara ◽  
Martijn Egas ◽  
Tomoko Matsuda ◽  
Tetsuo Gotoh
Keyword(s):  
Reproductive Isolation ◽  
Genetic Distance ◽  
Spider Mite ◽  
Hybrid Sterility ◽  
Fertilization Rate ◽  
Spider Mites ◽  
Reproductive Barriers ◽  
Hybrid Female ◽  
Hybrid Inviability ◽  
Prezygotic Isolation

Abstract Background Evolution of reproductive isolation is an important process, generating biodiversity and driving speciation. To better understand this process, it is necessary to investigate factors underlying reproductive isolation through various approaches but also in various taxa. Previous studies, mainly focusing on diploid animals, supported the prevalent view that reproductive barriers evolve gradually as a by-product of genetic changes accumulated by natural selection by showing a positive relationship between the degree of reproductive isolation and genetic distance. Haplodiploid animals are expected to generate additional insight into speciation, but few studies investigated the prevalent view in haplodiploid animals. In this study, we investigate whether the relationship also holds in a haplodiploid spider mite, Amphitetranychus viennensis (Zacher). Results We sampled seven populations of the mite in the Palaearctic region, measured their genetic distance (mtDNA) and carried out cross experiments with all combinations. We analyzed how lack of fertilization rate (as measure of prezygotic isolation) as well as hybrid inviability and hybrid sterility (as measures of postzygotic isolation) varies with genetic distance. We found that the degree of reproductive isolation varies among cross combinations, and that all three measures of reproductive isolation have a positive relationship with genetic distance. Based on the mtDNA marker, lack of fertilization rate, hybrid female inviability and hybrid female sterility were estimated to be nearly complete (99.0–99.9% barrier) at genetic distances of 0.475–0.657, 0.150–0.209 and 0.145–0.210, respectively. Besides, we found asymmetries in reproductive isolation. Conclusions The prevalent view on the evolution of reproductive barriers is supported in the haplodiploid spider mite we studied here. According to the estimated minimum genetic distance for total reproductive isolation in parent population crosses in this study and previous work, a genetic distance of 0.15–0.21 in mtDNA (COI) appears required for speciation in spider mites. Variations and asymmetries in the degree of reproductive isolation highlight the importance of reinforcement of prezygotic reproductive isolation through incompatibility and the importance of cytonuclear interactions for reproductive isolation in haplodiploid spider mites.

scholarly journals Variation in counterattack effect against a phytoseiid predator between two forms of the social spider mite, Stigmaeopsis miscanthi

2011 ◽  
Vol 29 (2) ◽  
pp. 337-342 ◽  
Author(s):  
Junya Yano ◽  
Yutaka Saito ◽  
Anthony R. Chittenden ◽  
Yukie Sato
Keyword(s):  
Spider Mite ◽  
Social Spider ◽  
The Social ◽  
Phytoseiid Predator

Reproductive isolation in birds: postcopulatory prezygotic barriers

2007 ◽  
Vol 22 (5) ◽  
pp. 266-272 ◽  
Author(s):  
Tim R. Birkhead ◽  
Jean-Pierre Brillard
Keyword(s):  
Reproductive Isolation ◽  
Prezygotic Barriers

scholarly journals Silk threads function as an ‘adhesive cleaner’ for nest space in a social spider mite

2010 ◽  
Vol 278 (1712) ◽  
pp. 1653-1660 ◽  
Author(s):  
Miki Kanazawa ◽  
Ken Sahara ◽  
Yutaka Saito
Keyword(s):  
Spider Mite ◽  
Natural Habitat ◽  
Nest Building ◽  
Social Spider ◽  
Social Lives ◽  
Cleaning Behaviour ◽  
Living Space ◽  
The Social ◽  
Nest Sanitation

Individuals of the social spider mite Stigmaeopsis longus live communally in narrow, humid nests made from silk threads and display nest sanitation behaviour through the coordinated deposition of faeces. We used artificial dust to experimentally determine that females of this species use silk threads to perform regular cleaning of the nest space and eggs. We first learned that silk-weaving behaviour is not a by-product of nest building (nest reinforcement); rather, it is actively performed as a function of cleaning the living space and eggs. Furthermore, we determined the effectiveness of the attending females by artificially manipulating their natural habitat, which is clearly connected to the cleaning behaviour by parental females. As such, we have uncovered an extraordinary new role of silk threads as devices for cleaning the nest space and/or eggs. These results strongly indicate that special adaptations for maintaining clean habitats are essential for animals to evolve aggregative social lives.

scholarly journals Incomplete premating and postmating reproductive barriers between two parapatric populations of a social spider mite

2015 ◽  
Vol 65 (3) ◽  
pp. 277-291 ◽  
Author(s):  
Yukie Sato ◽  
Johannes A. J. Breeuwer ◽  
Martijn Egas ◽  
Maurice W. Sabelis
Keyword(s):  
Spider Mite ◽  
Reproductive Barriers ◽  
Social Spider
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