Dissertations / Theses on the topic 'Satsuki'

Kyoto University (京都大学)
0048
新制・課程博士
博士(農学)
甲第20007号
農博第2191号
新制||農||1045(附属図書館)
学位論文||H28||N5016(農学部図書室)
33103
京都大学大学院農学研究科地域環境科学専攻
(主査)教授 本田 与一, 教授 髙部 圭司, 准教授 坂本 正弘
学位規則第4条第1項該当

A diversificação de cultivares copa e porta-enxertos de citros adaptadas às condições edafoclimáticas do estado do Paraná é um dos fatores de grande importância para o desenvolvimento da atividade citrícola paranaense. O objetivo deste trabalho foi avaliar o desenvolvimento vegetativo e a produção das plantas, e as características físicas e químicas dos frutos da tangerineira satsuma ‘Okitsu’ (Citrus unshiu Marc.), enxertada sobre nove porta-enxertos: limoeiro ‘Cravo’ (Citrus limonia Osb.), tangerineira ‘Cleópatra’ (Citrus reshni hort. ex Tanaka); citrangeiro ‘C-13’ [Citrus sinensis x Poncirus trifoliata (L.) Raf.]; limoeiro ‘Volkameriano’ (Citrus volkameriana V. Ten. e Pasq.); citrangeiro ‘Carrizo’ [Citrus sinensis x Poncirus trifoliata (L.) Raf.]; tangerineira ‘Sunki’ (Citrus sunki hort. ex Tanaka); trifoliata [Poncirus trifoliata (L.) Raf.]; citrumeleiro ‘Swingle’ [Citrus paradisi Macfad. cv. Duncan x Poncirus trifoliata (L.) Raf.]; e laranjeira ‘Caipira DAC’ [Citrus sinensis (L.) Osb.]. Os experimentos foram implantados no espaçamento de 7,0 m x 6,0 m na Estação Experimental do Instituto Agronômico do Paraná - IAPAR, no município de Londrina (julho/2000) e de Paranavaí (janeiro/2001). O delineamento experimental em ambos os locais foi de blocos ao acaso, com nove tratamentos, duas plantas por parcela, com seis repetições em Londrina e três em Paranavaí. Em Londrina, o maior desenvolvimento vegetativo da tangerineira satsuma ‘Okitsu’ foi sobre ‘Cleópatra’ e ‘Caipira DAC’, enquanto o menor foi sobre o ‘Volkameriano’ e trifoliata. O ‘Swingle’ induziu as maiores médias de produção em todos os nove anos avaliados, com produção média por planta de 313,7 kg e acumulada de 1.568,7 kg. Em relação à eficiência produtiva, plantas sobre o trifoliata se comportaram de maneira semelhante nos dois anos avaliados. Frutos com maiores médias de massa (166,0 a 168,0 g) foram produzidos sobre ‘C-13’, ‘Carrizo’, ‘Sunki’ e ‘Swingle’. Com relação às características químicas dos frutos, o ‘Carrizo’ e o trifoliata induziram as maiores médias para ratio (14,67 e 14,17, respectivamente) e rendimento em suco (47,4 e 47,2%, respectivamente), além de ‘Cleópatra’ e ‘Swingle’ que também induziram os melhores rendimentos em suco. As maiores médias de produção projetada (t/ha) teriam variação de 84,4 a 92,9 utilizando-se os porta-enxertos ‘Cleópatra’, ‘C-13’, ‘Carrizo’, ‘Sunki’, trifoliata, ‘Swingle’ e ‘Caipira DAC’. Em Paranavaí, o maior volume de copa da tangerineira satsuma ‘Okitsu’ foi obtido por ‘Cleópatra’ (37,1 m3). As maiores produções acumuladas foram apresentadas por plantas enxertadas sobre ‘Carrizo’, ‘Cleópatra’, ‘Caipira DAC’, ‘Cravo’ e ‘Volkameriano’ (867,3 kg a 989,6 kg), os quais também induziram as maiores massas (173,3 a 188,0 g), juntamente com ‘Sunki’. Os porta-enxertos ‘Cravo’, ‘Carrizo’, trifoliata e ‘Swingle’ induziram médias significativamente superiores para a variável ratio (10,41 a 10,87). O número de plantas/ha, segundo a projeção teórica, é menor quando se utiliza o porta-enxerto ‘Cleópatra’ e maior sobre o trifoliata, e a produção projetada da tangerineira satsuma ‘Okitsu’ pode variar de 85,5 a 143,6 t/ha para os nove porta-enxertos.
The diversification of citrus cultivars and rootstocks adapted to soil and climatic conditions of Paraná State is important for the development of citrus activity. The aim of this study was to evaluate the performance and the yield of the plants, and the physico chemical characteristics of the fruits of 'Okitsu' satsuma mandarin (Citrus unshiu Marc.) budded on nine rootstocks: ‘Cravo’ Rangpur lime (Citrus limonia Osb.), 'Cleopatra' mandarin (Citrus reshni hort. ex Tanaka); 'C-13' citrange (Citrus sinensis x Poncirus trifoliata orange (L.) Raf.) 'Volkamer' lemon (Citrus volkameriana V. Ten. e Pasq.) 'Carrizo' citrange [Citrus sinensis x Poncirus trifoliata (L.) Raf.] 'Sunki' mandarin (Citrus sunki hort. ex Tanaka), trifoliate orange [Poncirus trifoliata (L.) Raf. ] 'Swingle' citrumelo [Citrus paradisi Macfad. cv. Duncan x Poncirus trifoliata (L.) Raf.], and ‘Caipira DAC’ orange [Citrus sinensis (L.) Osb.]. The experiments were established at the Experimental Station of the Agronomic Institute of Paraná - IAPAR, in the municipalities of Londrina (July/2000), and Paranavaí (January/2001) and the spacing adopted was 7.0 m x 6.0 m. The experimental design for both places was a randomized blocks with nine treatments, two plants per plot and six replications for Londrina, and three replications in Paranavai. In the municipality of Londrina, the highest growing development was induced to ‘Okitsu’ satsuma mandarin by 'Cleopatra' mandarin and ‘Caipira DAC’ orange, while the lowest was induced by 'Volkamer' lemon and trifoliate. 'Swingle' was the rootstock that induced the highest average yield per tree per year in all nine evaluated years (313.7 kg), hence greater cumulative yield (1568.7 kg). The yield efficiency induced by trifoliate behaved similarly for both years evaluated. The rootstocks ‘C-13’, ‘Carrizo’, ‘Sunki’ and ‘Swingle’ showed the highest fruit mass (166.0 to 168.0 g). With respect to chemical qualities of the fruits, 'Carrizo' citrange and trifoliate showed the best values for ratio (SS/TA) (14.67 and 14.17, respectively), and juice yield (47.4 and 47.2%. respectively), in addition ‘Swingle’ and ‘Cleopatra’ for the last variable, induced the best results. According the theoretical values of spacing based on tree development, the yield would range from 84.4 ton to 92.9 ton per hectare for ‘Cleopatra’, ‘C-13’, ‘Carrizo’, ‘Sunki’, trifoliata, ‘Swingle’ and ‘Caipira DAC’ rootstocks. In the municipality of Paranavaí ‘Cleopatra’ mandarin induced the largest canopy (37.1 m3) and the highest accumulated yields were induced by 'Carrizo', 'Cleopatra', ‘Caipira DAC', 'Cravo’ Rangpur lime and 'Volkameriano' rootstocks (867.3 to 989.6 kg). These rootstocks also induced the largest fruit mass (173.3 to 188.0 g), along with 'Sunki' mandarin. The rootstocks ‘Cravo’, 'Carrizo', trifoliate, and 'Swingle' induced significantly higher levels as compared to the others, in regard to the chemical characteristics of fruits, such as ratio (10.41 to 10.87). Considering the theoretical values for orchard planning, 'Cleopatra' mandarin and trifoliate require the lowest and the highest number of plants, respectively, and the yield per hectare ranges from 85.5 to 143.6 tons for all rootstocks.

A citricultura brasileira está fundamentada predominantemente sobre apenas um cultivar porta-enxerto, o limoeiro Cravo, e explora poucos cultivares copa, de uma maneira geral. Desse modo, o setor citrícola fica limitado na abertura de suas fronteiras de exportação para frutas frescas por estar baseado em um pequeno número de cultivares. Além disso, ao redor de 80% dos plantios estão reunidos em uma região compreendida por quase 600 mil ha, de forma concentrada, no Estado de São Paulo e sul do Triângulo Mineiro. Esses fatos também acarretam em grande vulnerabilidade fitossanitária, com ameaças crescentes de pragas e doenças, levando à redução da produtividade e ao acréscimo dos custos de implantação e condução dos pomares. A Clorose Variegada dos Citros (CVC) ou amarelinho, causada pela bactéria Xylella fastidiosa, é um exemplo destas ameaças. De elevada severidade em laranjas doces, causa redução no tamanho dos frutos, tornando-os inaptos para a comercialização in natura ou para produção de suco concentrado. Recentemente, as perdas em produção causadas pela CVC têm sido estimadas em até 10-14% da safra comercializável. Atualmente, o manejo da CVC está baseado na utilização de mudas sadias, poda de ramos afetados, e controle dos vetores. Além dessas medidas, é importante manter os tratos culturais exigidos no pomar. Entretanto, a utilização de cultivares resistentes é estratégia imprescindível para convivência com a doença em longo prazo. Este trabalho buscou avaliar o desempenho horticultural da laranjeira Folha Murcha, da tangerineira Satsuma cv. Okitsu e da limeira ácida Tahiti sobre doze porta-enxertos. Tangerina Satsuma cv. Okitsu e lima ácida Tahiti são espécies não sintomáticas em relação à CVC e tornam-se opções com potencial de exploração em pequenas propriedades. A laranjeira Folha Murcha tem demonstrado maior tolerância à CVC comparativamente aos demais cultivares de laranja doce. Os experimentos foram conduzidos na Estação Experimental de Citricultura de Bebedouro, EECB, (SP), e instalados em 2001. Em todos os experimentos foram avaliados o desenvolvimento vegetativo, produção e qualidade dos frutos (por no mínimo três safras) em cada combinação copa/porta-enxerto. Avaliações adicionais a respeito da tolerância à CVC foram realizadas no experimento de laranjeira Folha Murcha. Nos experimentos conduzidos sem irrigação, foi avaliada a tolerância ao déficit hídrico das copas usando duas metodologias: avaliação visual subjetiva e medição direta da coloração das folhas. Na limeira ácida Tahiti, a coloração externa dos frutos de exportação foi quantificada em função de variáveis colorimétricas, definindo-se uma metodologia quantitativa alternativa ao sistema atual de classificação dos frutos, baseado apenas na apreciação visual subjetiva. A avaliação horticultural de copas de laranjeira Folha Murcha, limeira ácida Tahiti e tangerineira Satsuma cv. Okitsu em doze porta-enxertos permitiu identificar porta-enxertos alternativos ao limoeiro Cravo, sendo estes os trifoliatas Flying Dragon, FCAV e Rubidoux.
Brazilian citriculture is mainly based on one rootstock cultivar, the Cravo Rangpur lime, exploring a restricted number of scion cultivars. This situation limits the expansion of citrus production for fresh fruit export, due to the limited number of cultivars in use. Besides, near 80% of citrus orchards are located in an area of approximately 600,000 ha, in the São Paulo State and the southern region of the Minas Gerais State. These facts also impose a large phytossanitary vulnerability to citrus production, due to the increasing threats of pests and diseases outbreaks, that cause productivity decrease and higher costs for orchard establishment and management. The Citrus Variegated Chlorosis (CVC), caused by the xylem-limited bacterium, Xylella fastidiosa, is one example of such threats. This disease is extremely severe in sweet oranges, causing size reduction ad quality deterioration of fruits, that become unsuitable for fresh consume or juice processing. The losses associated to CVC have been recently estimated in 10-14% of the total comercial crop in São Paulo State. CVC management is currently based on the use of healthy nursery plants, pruning of injured branches and control of the vectors. In addition to these strategies, it is important to maintain adequate cultural practices for orchard management. Nonetheless, the utilization of resistant cultivars is an indispensable strategy to co-exist with the disease in the long term. This study was aimed to evaluate the horticultural performance of Folha Murcha sweet orange, Okitsu Satsuma mandarin and Tahiti lime grafted onto twelve rootstocks. Okitsu Satsuma mandarin and Tahiti lime are assymptomatical species in relation to CVC, with potential to be produced in small areas. The Folha Murcha sweet orange has demonstrated high tolerance to CVC, when compared with other sweet orange cultivars. The trials were conducted at the Estação Experimental de Citricultura de Bebedouro, (EECB), and were planted in 2001. Evaluations of plant growth, yield and fruit quality were carried out in all the trials, during three years. In the Folha Murcha trial, additional evaluations of CVC tolerance were conducted. In the non-irrigated trials, tree water deficit tolerance was evaluated by two methods: visual assessment of water stress and direct leaf color measurements. In Tahiti lime, peel color of export fruits was measured and a quantitative methodology was defined as an alternative for current classification criteria, which are based on the subjective visual inspection of external fruit aspect. The horticultural evaluation of Folha Murcha sweet orange, Okitsu Satsuma mandarin and Tahiti lime onto twelve rootstocks allowed to identify the trifoliate rootstocks Flying Dragon, Rubidoux and FCAV as alternatives to Cravo Limeira.

Kyoto University (京都大学)
0048
新制・課程博士
博士(人間・環境学)
甲第14707号
人博第443号
新制||人||109(附属図書館)
20||人博||443(吉田南総合図書館)
UT51-2009-D419
京都大学大学院人間・環境学研究科相関環境学専攻
(主査)教授 加藤 眞, 教授 松井 正文, 准教授 市岡 孝朗, 教授 曽田 貞滋
学位規則第4条第1項該当

Orientador: Jesus Aparecido Ferro
Coorientador: Rui Pereira Leite Júnior
Banca: Alessandro de Mello Varani
Banca: José Belasque Júnior
Resumo: O cancro cítrico, causado pela bactéria Xanthomonas citri subsp. citri (Xac), é uma das principais doenças que acometem a citricultura mundial e ataca uma ampla gama de espécies comerciais de citros, causando perdas significativas nos países produtores. A espécie de laranja doce Hamlin (Citrus sinensis) é suscetível ao cancro cítrico, enquanto a espécie de tangerina Satsuma (Citrus unshiu) é resistente. Para compreender os mecanismos moleculares relacionados aos sistemas de defesa ativados pela planta é importante identificar as alterações transcricionais de cada espécie vegetal sob estresse fitopatogênico, a fim de desvendar os elementos moleculares que são específicos de cada espécie. O objetivo do presente trabalho foi realizar uma análise comparativa temporal do transcriptoma de duas espécies cítricas contrastantes em resposta à Xac, pela técnica do RNA-Seq (Illumina). Um total de 5.673 e 6.231 transcritos diferencialmente expressos foi induzido nos tempos 24, 48 e 72 horas após a inoculação de Xac em Satsuma e Hamlin, respectivamente, enquanto 3.982 e 7.944 transcritos foram reprimidos. Deste total, 52 transcritos foram induzidos em comum, nas duas espécies, em todos os tempos de inoculação. Estes genes estão relacionados com a defesa basal da planta contra o ataque de Xac, pois apresentam genes que participam na percepção e reconhecimento do patógeno, genes que codificam fatores de transcrição e genes que participam na defesa da planta, como glucanases e proteinases. Entre os genes induzidos exclusivamente na espécie resistente Satsuma destacou-se uma proteinase aspártica. Esta proteína apresentou a maior expressão gênica no tempo 24 horas e pode estar envolvida na resistência desta espécie, visto que na espécie suscetível Hamlin, a expressão desta proteína foi menos expressiva e tardia, no tempo 48 horas. Outra resposta oposta entre as espécie foi na expressão de genes relacionados à ...
Abstract: Citrus canker, caused by Xanthomonas citri subsp. citri (Xac), is a one of the most important disease affecting citrus production worldwide and attacks a wide range of commercial species of citrus trees, causing significant losses in producing countries. Hamlin sweet orange (Citrus sinensis) is canker-sensitive, while Satsuma mandarin (Citrus unshiu) is canker-resistant. To understand the molecular mechanisms underlying the differences in responses to Xac, transcriptional profiles of these two genotypes following Xac attack were compared by RNA-Seq (Illumina). The purpose of this study was to examine simultaneous changes in gene expression profile during the early stages (24, 48 and 72 hpi) of citrus canker infection in Satsuma and Hamlin. A total of 5673 and 6231 up-regulated transcripts were identified at 24, 48 and 72 hpi in Satsuma and Hamlin, respectively, while 3982 and 7944 were down-regulated. Of these, 52 transcripts were up-regulated in common between both genotypes. These genes in common are related to basic defense against Xac, because there are genes involved in patogen perception and recognition, transcription factors and genes related to plant defense, such as glucanases and proteinases. Among up-regulated genes expressed only in Satsuma, aspartic proteinase was highlighted. This protein presented the highest gene expression 24 hpi and it can be involved in Satsuma resistance, since the expression of this protein was less pronounced and delayed in Hamlin. Another opposite response between these two genotypes was the expression of genes related to cell wall. Such genes were pectato lyase, extensin, cellulose sinthase, and xiloglucano endotransglycosilase. The genes were up-regulated in Satsuma, while in Hamlin, they were down-regulated. For genes related to plant defense, both genotypes up- regulated pathogenesis-related proteins, especially 72 hpi. However, the expression of these genes did not prevent the symptoms in ...
Mestre

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O cancro cítrico, causado pela bactéria Xanthomonas citri subsp. citri (Xac), é uma das principais doenças que acometem a citricultura mundial e ataca uma ampla gama de espécies comerciais de citros, causando perdas significativas nos países produtores. A espécie de laranja doce Hamlin (Citrus sinensis) é suscetível ao cancro cítrico, enquanto a espécie de tangerina Satsuma (Citrus unshiu) é resistente. Para compreender os mecanismos moleculares relacionados aos sistemas de defesa ativados pela planta é importante identificar as alterações transcricionais de cada espécie vegetal sob estresse fitopatogênico, a fim de desvendar os elementos moleculares que são específicos de cada espécie. O objetivo do presente trabalho foi realizar uma análise comparativa temporal do transcriptoma de duas espécies cítricas contrastantes em resposta à Xac, pela técnica do RNA-Seq (Illumina). Um total de 5.673 e 6.231 transcritos diferencialmente expressos foi induzido nos tempos 24, 48 e 72 horas após a inoculação de Xac em Satsuma e Hamlin, respectivamente, enquanto 3.982 e 7.944 transcritos foram reprimidos. Deste total, 52 transcritos foram induzidos em comum, nas duas espécies, em todos os tempos de inoculação. Estes genes estão relacionados com a defesa basal da planta contra o ataque de Xac, pois apresentam genes que participam na percepção e reconhecimento do patógeno, genes que codificam fatores de transcrição e genes que participam na defesa da planta, como glucanases e proteinases. Entre os genes induzidos exclusivamente na espécie resistente Satsuma destacou-se uma proteinase aspártica. Esta proteína apresentou a maior expressão gênica no tempo 24 horas e pode estar envolvida na resistência desta espécie, visto que na espécie suscetível Hamlin, a expressão desta proteína foi menos expressiva e tardia, no tempo 48 horas. Outra resposta oposta entre as espécie foi na expressão de genes relacionados à ...
Citrus canker, caused by Xanthomonas citri subsp. citri (Xac), is a one of the most important disease affecting citrus production worldwide and attacks a wide range of commercial species of citrus trees, causing significant losses in producing countries. Hamlin sweet orange (Citrus sinensis) is canker-sensitive, while Satsuma mandarin (Citrus unshiu) is canker-resistant. To understand the molecular mechanisms underlying the differences in responses to Xac, transcriptional profiles of these two genotypes following Xac attack were compared by RNA-Seq (Illumina). The purpose of this study was to examine simultaneous changes in gene expression profile during the early stages (24, 48 and 72 hpi) of citrus canker infection in Satsuma and Hamlin. A total of 5673 and 6231 up-regulated transcripts were identified at 24, 48 and 72 hpi in Satsuma and Hamlin, respectively, while 3982 and 7944 were down-regulated. Of these, 52 transcripts were up-regulated in common between both genotypes. These genes in common are related to basic defense against Xac, because there are genes involved in patogen perception and recognition, transcription factors and genes related to plant defense, such as glucanases and proteinases. Among up-regulated genes expressed only in Satsuma, aspartic proteinase was highlighted. This protein presented the highest gene expression 24 hpi and it can be involved in Satsuma resistance, since the expression of this protein was less pronounced and delayed in Hamlin. Another opposite response between these two genotypes was the expression of genes related to cell wall. Such genes were pectato lyase, extensin, cellulose sinthase, and xiloglucano endotransglycosilase. The genes were up-regulated in Satsuma, while in Hamlin, they were down-regulated. For genes related to plant defense, both genotypes up- regulated pathogenesis-related proteins, especially 72 hpi. However, the expression of these genes did not prevent the symptoms in ...

碩士
大葉大學
生物資源學系碩士班
101
The semi-arboreal land snail Satsuma batanica group includes 3 (sub-)species. Individuals of populations demonstrate obvious variation in shell size and shell shape. Furthermore, the taxonomy of dextral and sinistral species is not clear yet. This research use sequence of the mtDNA 16s rRNA to investigate their phylogeography. Total of 47 haplotypes were identified from 107 individual sequences. Most populations have their own unique haplotypes. The genetic divergence between the populations is correlated with geographic distance. Two lineages were raised from south of the Central Range. One colonized southwest Hengchung Peninsula, the other colonized other part of current distribution. The AMOVA analysis showed less divergence among (sub-)species, therefore, I suggest to keep S. bacca as a valid species while to treat S. batanica boteltobagoensis and S. b. pancala as synonym of S. batanica.

博士
國立臺灣大學
生態學與演化生物學研究所
95
ABSTRACT This dissertation concerns the systematics and phylogeny of a genus Satsuma (Pulmonata: Camaenidae) land snail group, Satsuma albida and its akin species from Taiwan. The phylogenetic relationships of the whole Satsuma species on this island are discussed in order to confer the evolutionary history and mechanism of their species formation. In the Chapter One, a general introduction is given on the systematics of the Camaenidae family. Taxonomy of species, studies of history and classification controversy in this group from Taiwanese camaenids fauna are also discussed. In the Chapter Two, the author apply traditional taxonomy method as comparative anatomy of the genital system, with the molecular survey was used to probe into the phylogenetic relationships of an arboreal Satsuma species complex from Taiwan, called Satsuma albida species complex. In this study, fifteen species were identified and described as new species from the group. Two subspecies of S. albida, S. a. insignis and S. a. mollicula were promoted to an independent species based on the characters of their reproductive system and the molecular phylogenetic relationships from other taxa. The reasons of species formation are also discussed, which provide more evolutionary evidences of the Satsuma snails from Taiwan. In the Chapter Three, the author used partial sequences of mtDNA CO 1 gene was used as the molecular marker to survey the population genetic structure of the terrestrial endemic Satsuma species, S. nux and its subspecies, which is widely distributed around Taiwan. After employing the molecular analysis, the true S. nux, which were conformed to the type specimen, were proved that only distributed in lowland areas of western Taiwan. Other S. nux like species should be recognized as independent species. It means that they are cryptic species of S. nux. Other two subspecies of S. nux, S. n. paiwanis and S. n. litus should seem as independent species as well. But the subspecies S. n. sericata is a synonym of S. nux according to the close genetic distance and similarity in the genetic structure to the S. nux population. The population genetic structure of S. nux can be divided into three deep clades, each group provides with unique haplotypes that are not shared between groups. These three groups may have diverged a long time ago via retreat and expansion events from different genetic sources several times. In the Chapter Four, an explicit phylogenetic relationship of all Taiwanese Camaenidae land snails are shown, which is based on the molecular markers of mtDNA and nucleus genes reflecting their evolutionary history. Species formation can be promoted via ecological reasons, such as spatial allocation in the group of arboreal species; or via single-gene mutation such as chiral reverse from sinistral to dextral shells. Such can cause mismatch mating and procure incipient species formation. Speciation can also be happened with a long term evolutionary process, through the vicariance or dispersal events and cause a monophyletic clade within high diversity taxa on the species level. Thus, these snails revealed a multiple origin of incipient speciation motive force within a genus even though confined through an island.

(anglicky): In this thesis, two representative works of two post-war schools of Japanese detective fiction are analysed based on the knowledge of modern narratology. Two mentioned schools are so called social school of detective fiction (shakaiha 社会派), which appeared at the beginning of 60ties, and new authentic school of detective fiction (shin honkakuha 新本格派), which appeared at the beginning of 80ties. This thesis focuses on a theoretical understanding of the term "detective fiction", it describes the development of the detective genre in post-war Japan while focusing on the debates on "authentic" and "inauthentic" detective fiction and describes typical features of two previously mentioned schools. The by using a theoretical apparat suitable for analysing works of very schematic detective genre, two works - Points and lines (Ten to sen 点と線, 1958) written by Matsumoto Seichō 松本清張 (1909-1992) and Tokyo Zodiac Murders (Senseijutu satsujin jiken 占星術殺人事件, 1981) written by Shimada Sōji 島田荘司 (1948 - ) - are analysed. Analyses focus on composition schemes of both works and on the example translated from original works, existence or absence of elements typical for both schools are demonstrated while a different usage of these elements is showed.