{"title":"First report on observation of a male-male agonistic behavior in a long-legged sac spider, Cheiracanthium eutittha (Araneae: Cheiracanthidae)","authors":"Suzuki Yuya","doi":"10.2476/asjaa.71.59","DOIUrl":"https://doi.org/10.2476/asjaa.71.59","url":null,"abstract":"","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48824369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
― A new spider species, Pardosa temreshevi sp. n., collected among screes on elevation 3600 m, is described from southern Kazakhstan based on females. The new species has increased number of ventral spines on tibiae I. Pardosa temreshevi sp. n. is distantly similar to P. zhangi Song & Haupt 1995 from the highlands of Xinjiang Province (China) and distinctly differs from it by conformation of the epigyne.
{"title":"A new species of Pardosa C. L. Koch 1847 (Araneae: Lycosidae) from the highlands of Tian Shan Mountains (southern Kazakhstan)","authors":"A. A. Fomichev","doi":"10.2476/asjaa.71.1","DOIUrl":"https://doi.org/10.2476/asjaa.71.1","url":null,"abstract":"― A new spider species, Pardosa temreshevi sp. n., collected among screes on elevation 3600 m, is described from southern Kazakhstan based on females. The new species has increased number of ventral spines on tibiae I. Pardosa temreshevi sp. n. is distantly similar to P. zhangi Song & Haupt 1995 from the highlands of Xinjiang Province (China) and distinctly differs from it by conformation of the epigyne.","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45322834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Redescription of Sphecotypus taprobanicus Simon 1897 (Araneae: Corinnidae)","authors":"Takeshi Yamasaki, C. Rollard","doi":"10.2476/asjaa.71.49","DOIUrl":"https://doi.org/10.2476/asjaa.71.49","url":null,"abstract":"","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44506931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A new species of Cybaeus with short genitalia from central Honshu, Japan (Araneae: Cybaeidae)","authors":"Y. Sugawara, N. Koike, T. Nakano","doi":"10.2476/asjaa.71.27","DOIUrl":"https://doi.org/10.2476/asjaa.71.27","url":null,"abstract":"","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42727890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-01Epub Date: 2022-03-11DOI: 10.1007/s00122-022-04070-7
Linfeng Chen, Shouping Yang, Susan Araya, Charles Quigley, Earl Taliercio, Rouf Mian, James E Specht, Brian W Diers, Qijian Song
Key message: Software for high imputation accuracy in soybean was identified. Imputed dataset could significantly reduce the interval of genomic regions controlling traits, thus greatly improve the efficiency of candidate gene identification. Genotype imputation is a strategy to increase marker density of existing datasets without additional genotyping. We compared imputation performance of software BEAGLE 5.0, IMPUTE 5 and AlphaPlantImpute and tested software parameters that may help to improve imputation accuracy in soybean populations. Several factors including marker density, extent of linkage disequilibrium (LD), minor allele frequency (MAF), etc., were examined for their effects on imputation accuracy across different software. Our results showed that AlphaPlantImpute had a higher imputation accuracy than BEAGLE 5.0 or IMPUTE 5 tested in each soybean family, especially if the study progeny were genotyped with an extremely low number of markers. LD extent, MAF and reference panel size were positively correlated with imputation accuracy, a minimum number of 50 markers per chromosome and MAF of SNPs > 0.2 in soybean line were required to avoid a significant loss of imputation accuracy. Using the software, we imputed 5176 soybean lines in the soybean nested mapping population (NAM) with high-density markers of the 40 parents. The dataset containing 423,419 markers for 5176 lines and 40 parents was deposited at the Soybase. The imputed NAM dataset was further examined for the improvement of mapping quantitative trait loci (QTL) controlling soybean seed protein content. Most of the QTL identified were at identical or at similar position based on initial and imputed datasets; however, QTL intervals were greatly narrowed. The resulting genotypic dataset of NAM population will facilitate QTL mapping of traits and downstream applications. The information will also help to improve genotyping imputation accuracy in self-pollinated crops.
{"title":"Genotype imputation for soybean nested association mapping population to improve precision of QTL detection.","authors":"Linfeng Chen, Shouping Yang, Susan Araya, Charles Quigley, Earl Taliercio, Rouf Mian, James E Specht, Brian W Diers, Qijian Song","doi":"10.1007/s00122-022-04070-7","DOIUrl":"10.1007/s00122-022-04070-7","url":null,"abstract":"<p><strong>Key message: </strong>Software for high imputation accuracy in soybean was identified. Imputed dataset could significantly reduce the interval of genomic regions controlling traits, thus greatly improve the efficiency of candidate gene identification. Genotype imputation is a strategy to increase marker density of existing datasets without additional genotyping. We compared imputation performance of software BEAGLE 5.0, IMPUTE 5 and AlphaPlantImpute and tested software parameters that may help to improve imputation accuracy in soybean populations. Several factors including marker density, extent of linkage disequilibrium (LD), minor allele frequency (MAF), etc., were examined for their effects on imputation accuracy across different software. Our results showed that AlphaPlantImpute had a higher imputation accuracy than BEAGLE 5.0 or IMPUTE 5 tested in each soybean family, especially if the study progeny were genotyped with an extremely low number of markers. LD extent, MAF and reference panel size were positively correlated with imputation accuracy, a minimum number of 50 markers per chromosome and MAF of SNPs > 0.2 in soybean line were required to avoid a significant loss of imputation accuracy. Using the software, we imputed 5176 soybean lines in the soybean nested mapping population (NAM) with high-density markers of the 40 parents. The dataset containing 423,419 markers for 5176 lines and 40 parents was deposited at the Soybase. The imputed NAM dataset was further examined for the improvement of mapping quantitative trait loci (QTL) controlling soybean seed protein content. Most of the QTL identified were at identical or at similar position based on initial and imputed datasets; however, QTL intervals were greatly narrowed. The resulting genotypic dataset of NAM population will facilitate QTL mapping of traits and downstream applications. The information will also help to improve genotyping imputation accuracy in self-pollinated crops.</p>","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":"3 1","pages":"1797-1810"},"PeriodicalIF":5.4,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9110473/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90964180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
― The species Neobisium ( Neobisium ) vilcekii Krumpál 1983 is redescribed and illustrated based on the adult specimens collected from Caucasian region of Russia. In addition, a new size range, a new description of the females and some morphological and minor morphometric variations within the species are provided.
{"title":"A redescription of Neobisium (N.) vilcekii Krumpál 1983 (Pseudoscorpiones: Neobisiidae) from Caucasian Russia","authors":"M. Nassirkhani, N. Snegovaya","doi":"10.2476/asjaa.70.77","DOIUrl":"https://doi.org/10.2476/asjaa.70.77","url":null,"abstract":"― The species Neobisium ( Neobisium ) vilcekii Krumpál 1983 is redescribed and illustrated based on the adult specimens collected from Caucasian region of Russia. In addition, a new size range, a new description of the females and some morphological and minor morphometric variations within the species are provided.","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42125249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Geographic variation in the ontogeny of web decorating by Argiope appensa (Araneae: Araneidae)","authors":"A. Kerr, Curt G. Fiedler","doi":"10.2476/asjaa.70.103","DOIUrl":"https://doi.org/10.2476/asjaa.70.103","url":null,"abstract":"","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41454363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Araneus is a large genus containing many species with various features, and phylogenetic analysis has revealed it to be a polyphyletic group. It has been proposed that nine new genera should be established independently from Araneus. One example is a group that includes Araneus mitificus (Simon 1886) and Araneus praesignis (L. Koch 1872). In this study, we examined specimens from several species that are morphologically similar to them, and confirmed their close relationship by phylogenetic analysis using the data of five genes. All targeted species were united in a monophyletic clade, comprising two groups in detail. The epigynes and male palps of the species in these two groups were clearly distinguishable; therefore, we concluded that they should be recognized as two independent genera. Consequently, we describe two new genera, Aoaraneus n. gen. and Bijoaraneus n. gen. Additionally, previously identified Japanese Araneus mitificus specimens were reexamined and concluded to be misidentified. It is described as a new species under the name Bijoaraneus komachi n. sp. in this study.
蜘蛛属是一个大属，包含许多种，具有不同的特征，系统发育分析表明它是一个多系群。有9个新属是独立于阿兰属之外而建立的。其中一个例子是一组包括小黄黄阿兰(Simon 1886)和praesignis阿兰(L. Koch 1872)。在本研究中，我们检查了几个物种的标本，在形态上与它们相似，并通过系统发育分析，利用5个基因的数据证实了它们的密切关系。所有的目标物种都统一在一个单系进化枝中，包括两组。在这两组中，种的表掌和雄掌有明显的区别;因此，我们认为它们应该被认为是两个独立的属。因此，我们描述了Aoaraneus n. gen和Bijoaraneus n. gen这两个新属。此外，我们还对先前鉴定的日本小黑斑阿兰(Araneus mittificus)标本进行了重新鉴定，并得出了错误鉴定的结论。本研究将其命名为Bijoaraneus komachi n. sp.。
{"title":"Two new genera of Araneidae (Arachnida: Araneae)","authors":"A. Tanikawa, Takeshi Yamasaki, B. Petcharad","doi":"10.2476/asjaa.70.87","DOIUrl":"https://doi.org/10.2476/asjaa.70.87","url":null,"abstract":"Araneus is a large genus containing many species with various features, and phylogenetic analysis has revealed it to be a polyphyletic group. It has been proposed that nine new genera should be established independently from Araneus. One example is a group that includes Araneus mitificus (Simon 1886) and Araneus praesignis (L. Koch 1872). In this study, we examined specimens from several species that are morphologically similar to them, and confirmed their close relationship by phylogenetic analysis using the data of five genes. All targeted species were united in a monophyletic clade, comprising two groups in detail. The epigynes and male palps of the species in these two groups were clearly distinguishable; therefore, we concluded that they should be recognized as two independent genera. Consequently, we describe two new genera, Aoaraneus n. gen. and Bijoaraneus n. gen. Additionally, previously identified Japanese Araneus mitificus specimens were reexamined and concluded to be misidentified. It is described as a new species under the name Bijoaraneus komachi n. sp. in this study.","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48144532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
― Three new genera of the family Phrurolithidae, Pennalithus n. gen., Corealithus n. gen. and Labialithus n. gen., are described, and Pennalithus pennatus (Yaginuma 1967) n. comb., Corealithus coreanus (Paik 1991) n. comb. and Labialithus labialis (Paik 1991) n. comb. are respectively designated as type species. In addition to the above type species, four new combinations are proposed: Pennalithus splendidus (Song & Zheng 1992) n. comb., P. palgongensis (Seo 1988) n. comb., Corealithus subnigerus (Fu, Chen & Zhang 2016) n. comb. and Labialithus lindemanni (Marusik, Omelko & Koponen 2020) n. comb. The above five spe cies of Pennalithus and Corealithus are transferred from Otacilia Thorell 1897, and two species of Labialithus are from Phrurolithus C. L. Koch 1839. A new species, Pennalithus suguroi n. sp., is described, and Phrurolithus pennatoides Seo 2018 is treated as a junior synonym splendidus
{"title":"Three new genera of the family Phrurolithidae (Araneae) from East Asia","authors":"Takahide Kamura","doi":"10.2476/asjaa.70.117","DOIUrl":"https://doi.org/10.2476/asjaa.70.117","url":null,"abstract":"― Three new genera of the family Phrurolithidae, Pennalithus n. gen., Corealithus n. gen. and Labialithus n. gen., are described, and Pennalithus pennatus (Yaginuma 1967) n. comb., Corealithus coreanus (Paik 1991) n. comb. and Labialithus labialis (Paik 1991) n. comb. are respectively designated as type species. In addition to the above type species, four new combinations are proposed: Pennalithus splendidus (Song & Zheng 1992) n. comb., P. palgongensis (Seo 1988) n. comb., Corealithus subnigerus (Fu, Chen & Zhang 2016) n. comb. and Labialithus lindemanni (Marusik, Omelko & Koponen 2020) n. comb. The above five spe cies of Pennalithus and Corealithus are transferred from Otacilia Thorell 1897, and two species of Labialithus are from Phrurolithus C. L. Koch 1839. A new species, Pennalithus suguroi n. sp., is described, and Phrurolithus pennatoides Seo 2018 is treated as a junior synonym splendidus","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47391759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. I. Foerster, W. Dionisio-da-Silva, Adriana B. dos Santos, C. M. D. de Albuquerque, A. Lira
― Scorpions can adopt different reproductive strategies (e.g., sexual or parthenogenesis) depending on the environmental conditions. In this study, we described the courtship repertoire of the parthenogenetic scorpion Tityus stigmurus , a species with inconspicuous sexual populations distributed throughout northeastern Brazil. Specimens of both sexes (10 males, 10 females) were obtained from field expeditions in three locations in northeastern Brazil and were paired under laboratory conditions in an intrapopulation design. All observations were conducted at night using red light positioned above an experimental arena. From the 10 courtship interactions observed in this study, only one pair successfully completed the reproductive repertoire that included the insemination process. The incomplete interactions were abruptly terminated by the females immediately after deposition of the spermatophore. Overall, the reproductive repertoire of T. stigmurus was similar to that of other scorpions, especially its congeners, possibly because this reproductive behavior emerged at a basal point in the evolution of scorpions. The acquisition of new insights into the reproductive biology of different scorpion species may improve the theoretical background for applications ranging from evolutionary biology to public health strategies.
{"title":"Notes on the courtship behavior of the parthenogenetic scorpion Tityus stigmurus","authors":"S. I. Foerster, W. Dionisio-da-Silva, Adriana B. dos Santos, C. M. D. de Albuquerque, A. Lira","doi":"10.2476/asjaa.70.83","DOIUrl":"https://doi.org/10.2476/asjaa.70.83","url":null,"abstract":"― Scorpions can adopt different reproductive strategies (e.g., sexual or parthenogenesis) depending on the environmental conditions. In this study, we described the courtship repertoire of the parthenogenetic scorpion Tityus stigmurus , a species with inconspicuous sexual populations distributed throughout northeastern Brazil. Specimens of both sexes (10 males, 10 females) were obtained from field expeditions in three locations in northeastern Brazil and were paired under laboratory conditions in an intrapopulation design. All observations were conducted at night using red light positioned above an experimental arena. From the 10 courtship interactions observed in this study, only one pair successfully completed the reproductive repertoire that included the insemination process. The incomplete interactions were abruptly terminated by the females immediately after deposition of the spermatophore. Overall, the reproductive repertoire of T. stigmurus was similar to that of other scorpions, especially its congeners, possibly because this reproductive behavior emerged at a basal point in the evolution of scorpions. The acquisition of new insights into the reproductive biology of different scorpion species may improve the theoretical background for applications ranging from evolutionary biology to public health strategies.","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47424533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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