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RISS 인기검색어
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- 저자 : Bandopadhyay, (검색결과 4 건)
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Endogenous Skill Formation: Labor Market Integration by an Immigration
( Titas Kumar Bandopadhyay ),( Sarbajit Chaudhuri ) 세종대학교 경제통합연구소(구 세종대학교 국제경제연구소) 2013 Journal of Economic Integration Vol.28 No.1
The paper fabricates endogenous skill formation in a two-sector general equilibrium model where the unemployment of the skilled workers is caused by efficiency wage. The paper also examines the effects of the immigration of unskilled labor, the emigration of skilled labor, and the inflow of foreign capital on unemployment, skilled-unskilled wage inequality, and the level of skill formation in each unskilled working family. We find that the immigration of unskilled labor raises both the rate and level of unemployment of the skilled labor and lowers both the relative skilled-unskilled wage inequality and the level of skill formation in each unskilled working family under certain conditions. However, the emigration of skilled labor or the inflow of foreign capital gives opposite results
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Phylogenic Relationships of Rubus Species Revealed by Randomly Amplified Polymorphic DNA Markers
유기석,정병엽,Rajib Bandopadhyay,유남희,최동근,Song Joong Yun 한국작물학회 2008 Journal of crop science and biotechnology Vol.11 No.1
Korean cultivated bramble, which is known as Bokbunja-ddal-gi is regarded as having originated from Korean native Rubus coreanus. However, little scientific evidence and significant morphological differences between Korean cultivated bramble (KCB) and R. coreanus throws doubt on the ancestry of KCB. This study was carried out to obtain phylogenetic information on KCB by comparing its nuclear genomic background with those of R. coreanus, black (R. occidentalis) and red (R. idaeus) raspberry, blackberry (R. lanciniatus), and R. crataegifolius. A total of 99 random amplified polymorphic DNA (RAPD) markers were generated and used for phylogenetic analysis of 76 Rubus accessions. Accessions of each species were grouped into each distinct subclade by the RAPD markers at a similarity coefficient of about 0.59. The KCB subclade formed a clade with R. occidentalis and R. crataegifolius subclades at a similarity coefficient of 0.47. The R. coreanus subclade formed a clade with R. idaeus, R. lanciniatus, and R. crataegifolius subclades at a similar level of genetic similarity. Only one KCB accession from Hoengsung was included in the R. coreanus subclade. The accession shows leaf and flower characteristics differed from the rest of the KCB accessions. The phylogenetic relationship inferred from the RAPD markers suggests that the nuclear genomic background of KCB accessions which show morphological similarity to black raspberry is more closely related to black raspberry than to R. coreanus. This brings about the need for close scientific evaluations on the ancestry of KCB at both morphological and molecular levels. Korean cultivated bramble, which is known as Bokbunja-ddal-gi is regarded as having originated from Korean native Rubus coreanus. However, little scientific evidence and significant morphological differences between Korean cultivated bramble (KCB) and R. coreanus throws doubt on the ancestry of KCB. This study was carried out to obtain phylogenetic information on KCB by comparing its nuclear genomic background with those of R. coreanus, black (R. occidentalis) and red (R. idaeus) raspberry, blackberry (R. lanciniatus), and R. crataegifolius. A total of 99 random amplified polymorphic DNA (RAPD) markers were generated and used for phylogenetic analysis of 76 Rubus accessions. Accessions of each species were grouped into each distinct subclade by the RAPD markers at a similarity coefficient of about 0.59. The KCB subclade formed a clade with R. occidentalis and R. crataegifolius subclades at a similarity coefficient of 0.47. The R. coreanus subclade formed a clade with R. idaeus, R. lanciniatus, and R. crataegifolius subclades at a similar level of genetic similarity. Only one KCB accession from Hoengsung was included in the R. coreanus subclade. The accession shows leaf and flower characteristics differed from the rest of the KCB accessions. The phylogenetic relationship inferred from the RAPD markers suggests that the nuclear genomic background of KCB accessions which show morphological similarity to black raspberry is more closely related to black raspberry than to R. coreanus. This brings about the need for close scientific evaluations on the ancestry of KCB at both morphological and molecular levels.
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Phylogenic Relationships of Rubus Species Revealed by Randomly Amplified Polymorphic DNA Markers
Eu, Gee-Suck,Chung, Byung-Yeoup,Bandopadhyay, Rajib,Yoo, Nam-Hee,Choi, Dong-Geun,Yun, Song-Joong The Korean Society of Crop Science 2008 Journal of crop science and biotechnology Vol.11 No.1
Korean cultivated bramble, which is known as Bokbunja-ddal-gi is regarded to be originated from Korea native Rubus coreanus. However, little scientific evidence and significant morphological differences between Korean cultivated bramble(KCB) and R. coreanus throw doubt on the ancestry of KCB. This study was carried out to obtain phylogenetic information on KCB by comparing its nuclear genomic background with those of R. coreanus, black(R. occidentalis) and red(R. idaeus) raspberry, blackberry(R. lanciniatus) and R. crataegifolius. A total of 99 random amplified polymorphic DNA(RAPD) markers were generated and used for phylogenetic analysis of 76 Rubus accessions. Accessions of each species were grouped into each distinct subclade by the RAPD markers at a similarity coefficient of about 0.59. The KCB subclade formed a clade with R. occidentalis and R. crataegifolius subclades at a similarity coefficient of 0.47. The R. coreanus subclade formed a clade with R. idaeus, R. lanciniatus and R. crataegifolius subclades at a similar similarity coefficient. Only one KCB accession from Hoengsung was included in R. coreanus subclade. The accession shows leaf and flower characteristics different from the rest of the KCB accessions. The phylogenetic relationship inferred from the RAPD markers suggests that the nuclear genomic background of KCB accessions which show morphological similarity to black raspberry is more closely related to black raspberry than to R. coreanus. This brings about the need for close scientific evaluations on the ancestry of KCB at both morphological and molecular levels.
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