|
|
|
|
|
|
|
|
|
|
|
|
资助项目
0.05) between wild (AR = 4.651), semi-cultivated (AR = 5.091) and cultivated (AR = 5.132) populations of C. taliensis, which suggested that the genetic background of long-lived woody plant was not easy to be changed, and there were moderate high gene flow between populations. However, there was a significant difference (P < 0.05) between wild (AR = 5.9) and cultivated (AR = 7.1) populations distributed in the same place in Yun county, Yunnan province, which may result from the hybridization and introgression of species in the tea garden and anthropogenic damages to the wild population. The hypothesis of hybrid origin of C. grandibracteata was tested by morphological and microsatellites analyses. Compared with other species, the locules in ovary of C. grandibracteata are variable, which showed a morphological intermediate and mosaic. Except one private allele, Ninety-nine percent alleles of C. grandibracteata were shared with these of C. taliensis and C. sinensis var. assamica. And C. grandibracteata was nested in the cluster of C. taliensis in the UPGMA tree. Conclusively, our results supported the hypothesis of hybrid origin of C. grandibracteata partly. The speciation of C. grandibracteata was derived from hybridization and asymmetrical introgression potentially. It is possible that C. taliensis was one of its parents, but it still needs more evidences to prove that C. sinensis var. assamica was another parent.","jscount":"1","jsurl":"/simple-search?field1=all&field=dc.project.fundingorganization_filter&advanced=false&query1=HANDBOOK&&fq=dc.project.title_filter%3ACamellia%5C+taliensis%5C+%5C%28W.%5C+W.%5C+Smith%5C%29%5C+Melchior%2C%5C+a%5C+member%5C+of%5C+Camellia%5C+sect.%5C+Thea%2C%5C+is%5C+an%5C+indigenous%5C+species%5C+in%5C+local%5C+natural%5C+forest%5C+and%5C+has%5C+a%5C+long%5C+cultivative%5C+history%5C+in%5C+western%5C+Yunnan%5C+and%5C+its%5C+neighborhood%2C%5C+where%5C+the%5C+domestications%5C+of%5C+this%5C+species%5C+in%5C+different%5C+historical%5C+periods%5C+and%5C+in%5C+different%5C+ways%5C+can%5C+be%5C+found.%5C+C.%5C+taliensis%5C+is%5C+an%5C+important%5C+contributor%5C+to%5C+the%5C+formations%5C+of%5C+tea%5C+landraces%5C+by%5C+hybridization%5C+and%5C+introgression.%5C+In%5C+the%5C+present%5C+study%2C%5C+14%5C+microsatellite%5C+loci%5C+screened%5C+from%5C+37%5C+loci%5C+were%5C+used%5C+to%5C+explore%5C+the%5C+genetic%5C+diversity%5C+about%5C+this%5C+species%5C+with%5C+579%5C+samples%5C+from%5C+25%5C+populations%5C+%5C%2816%5C+wild%5C+populations%2C%5C+4%5C+semi%5C-cultivated%5C+populations%5C+and%5C+5%5C+cultivated%5C+populations%5C%29.%5C+At%5C+the%5C+same%5C+time%2C%5C+the%5C+potential%5C+hybrid%5C+speciation%5C+of%5C+C.%5C+grandibracteata%2C%5C+was%5C+investigated%5C+using%5C+39%5C+individuals%5C+from%5C+2%5C+populations%2C%5C+along%5C+with%5C+C.%5C+taliensis%5C+and%5C+C.%5C+sinensis%5C+var.%5C+assamica%5C+%5C%2883%5C+individuals%5C+from%5C+4%5C+populations%5C%29%5C+by%5C+the%5C+same%5C+microsatellite%5C+markers.%5C+C.%5C+taliensis%5C+had%5C+a%5C+moderate%5C+high%5C+level%5C+of%5C+genetic%5C+diversity%5C+%5C%28A%5C+%3D%5C+14.3%2C%5C+Ne%3D%5C+5.7%2C%5C+HE%5C+%3D%5C+0.666%2C%5C+I%5C+%3D%5C+1.753%2C%5C+AR%5C+%3D%5C+7.2%2C%5C+PPB%5C+%3D%5C+100%25%5C%29.%5C+This%5C+may%5C+result%5C+from%5C+several%5C+factors%5C+including%5C+K%5C-strategy%2C%5C+genetic%5C+background%2C%5C+gene%5C+flow%5C+between%5C+populations%2C%5C+hybridization%5C+and%5C+introgression%5C+among%5C+species.%5C+Between%5C+wild%5C+populations%5C+of%5C+C.%5C+taliensis%2C%5C+the%5C+gene%5C+flow%5C+was%5C+moderate%5C+high%5C+%5C%28Nm%5C+%3D%5C+1.197%5C%29%2C%5C+and%5C+genetic%5C+variation%5C+was%5C+less%5C+than%5C+20%25%5C+%5C%28GST%5C+%3D%5C+0.147%2C%5C+FST%5C+%3D%5C+0.173%5C%29%2C%5C+which%5C+was%5C+similar%5C+to%5C+other%5C+research%5C+results%5C+of%5C+long%5C-lived%5C+woody%5C+plants%2C%5C+and%5C+reflected%5C+the%5C+genetic%5C+structure%5C+of%5C+its%5C+ancestry%5C+to%5C+same%5C+extent.%5C+There%5C+was%5C+a%5C+high%5C+significant%5C+correlation%5C+between%5C+geographic%5C+distance%5C+and%5C+Nei%E2%80%99s%5C+genetic%5C+distance%5C+%5C%28r%5C+%3D%5C+0.372%2C%5C+P%5C+%3D%5C+0.001%5C%29%5C+of%5C+populations%2C%5C+which%5C+accorded%5C+with%5C+isolation%5C+by%5C+distance%5C+model.%5C+Inferring%5C+from%5C+Bayesian%5C+clustering%5C+of%5C+genotypes%2C%5C+all%5C+individuals%5C+of%5C+C.%5C+taliensis%5C+were%5C+divided%5C+into%5C+two%5C+groups%2C%5C+conflicting%5C+with%5C+the%5C+result%5C+based%5C+on%5C+Nei%E2%80%99s%5C+genetic%5C+distance%5C+and%5C+real%5C+geographic%5C+distribution%2C%5C+which%5C+suggested%5C+there%5C+were%5C+heavy%5C+and%5C+non%5C-random%5C+influences%5C+by%5C+human%5C+practices.%5C+According%5C+to%5C+allelic%5C+richness%2C%5C+there%5C+were%5C+no%5C+significant%5C+differences%5C+%5C%28P%5C+%3E%5C+0.05%5C%29%5C+between%5C+wild%5C+%5C%28AR%5C+%3D%5C+4.651%5C%29%2C%5C+semi%5C-cultivated%5C+%5C%28AR%5C+%3D%5C+5.091%5C%29%5C+and%5C+cultivated%5C+%5C%28AR%5C+%3D%5C+5.132%5C%29%5C+populations%5C+of%5C+C.%5C+taliensis%2C%5C+which%5C+suggested%5C+that%5C+the%5C+genetic%5C+background%5C+of%5C+long%5C-lived%5C+woody%5C+plant%5C+was%5C+not%5C+easy%5C+to%5C+be%5C+changed%2C%5C+and%5C+there%5C+were%5C+moderate%5C+high%5C+gene%5C+flow%5C+between%5C+populations.%5C+However%2C%5C+there%5C+was%5C+a%5C+significant%5C+difference%5C+%5C%28P%5C+%3C%5C+0.05%5C%29%5C+between%5C+wild%5C+%5C%28AR%5C+%3D%5C+5.9%5C%29%5C+and%5C+cultivated%5C+%5C%28AR%5C+%3D%5C+7.1%5C%29%5C+populations%5C+distributed%5C+in%5C+the%5C+same%5C+place%5C+in%5C+Yun%5C+county%2C%5C+Yunnan%5C+province%2C%5C+which%5C+may%5C+result%5C+from%5C+the%5C+hybridization%5C+and%5C+introgression%5C+of%5C+species%5C+in%5C+the%5C+tea%5C+garden%5C+and%5C+anthropogenic%5C+damages%5C+to%5C+the%5C+wild%5C+population.%5C+The%5C+hypothesis%5C+of%5C+hybrid%5C+origin%5C+of%5C+C.%5C+grandibracteata%5C+was%5C+tested%5C+by%5C+morphological%5C+and%5C+microsatellites%5C+analyses.%5C+Compared%5C+with%5C+other%5C+species%2C%5C+the%5C+locules%5C+in%5C+ovary%5C+of%5C+C.%5C+grandibracteata%5C+are%5C+variable%2C%5C+which%5C+showed%5C+a%5C+morphological%5C+intermediate%5C+and%5C+mosaic.%5C+Except%5C+one%5C+private%5C+allele%2C%5C+Ninety%5C-nine%5C+percent%5C+alleles%5C+of%5C+C.%5C+grandibracteata%5C+were%5C+shared%5C+with%5C+these%5C+of%5C+C.%5C+taliensis%5C+and%5C+C.%5C+sinensis%5C+var.%5C+assamica.%5C+And%5C+C.%5C+grandibracteata%5C+was%5C+nested%5C+in%5C+the%5C+cluster%5C+of%5C+C.%5C+taliensis%5C+in%5C+the%5C+UPGMA%5C+tree.%5C+Conclusively%2C%5C+our%5C+results%5C+supported%5C+the%5C+hypothesis%5C+of%5C+hybrid%5C+origin%5C+of%5C+C.%5C+grandibracteata%5C+partly.%5C+The%5C+speciation%5C+of%5C+C.%5C+grandibracteata%5C+was%5C+derived%5C+from%5C+hybridization%5C+and%5C+asymmetrical%5C+introgression%5C+potentially.%5C+It%5C+is%5C+possible%5C+that%5C+C.%5C+taliensis%5C+was%5C+one%5C+of%5C+its%5C+parents%2C%5C+but%5C+it%5C+still%5C+needs%5C+more%5C+evidences%5C+to%5C+prove%5C+that%5C+C.%5C+sinensis%5C+var.%5C+assamica%5C+was%5C+another%5C+parent."},{"jsname":"Chiang Mai University","jscount":"1","jsurl":"/simple-search?field1=all&field=dc.project.fundingorganization_filter&advanced=false&query1=HANDBOOK&&fq=dc.project.title_filter%3AChiang%5C+Mai%5C+University"},{"jsname":"China Scholarship Council[201504910423]","jscount":"1","jsurl":"/simple-search?field1=all&field=dc.project.fundingorganization_filter&advanced=false&query1=HANDBOOK&&fq=dc.project.title_filter%3AChina%5C+Scholarship%5C+Council%5C%5B201504910423%5C%5D"},{"jsname":"Chinese Academy of Sciences","jscount":"1","jsurl":"/simple-search?field1=all&field=dc.project.fundingorganization_filter&advanced=false&query1=HANDBOOK&&fq=dc.project.title_filter%3AChinese%5C+Academy%5C+of%5C+Sciences"},{"jsname":"Chinese Academy of Sciences[2013T2S0030]","jscount":"1","jsurl":"/simple-search?field1=all&field=dc.project.fundingorganization_filter&advanced=false&query1=HANDBOOK&&fq=dc.project.title_filter%3AChinese%5C+Academy%5C+of%5C+Sciences%5C%5B2013T2S0030%5C%5D"},{"jsname":"Chinese Academy of Sciences[2013T2S003]","jscount":"1","jsurl":"/simple-search?field1=all&field=dc.project.fundingorganization_filter&advanced=false&query1=HANDBOOK&&fq=dc.project.title_filter%3AChinese%5C+Academy%5C+of%5C+Sciences%5C%5B2013T2S003%5C%5D"},{"jsname":"Chinese Scholarship Council","jscount":"1","jsurl":"/simple-search?field1=all&field=dc.project.fundingorganization_filter&advanced=false&query1=HANDBOOK&&fq=dc.project.title_filter%3AChinese%5C+Scholarship%5C+Council"},{"jsname":"Council of Scientific and Industrial Research, New Delhi[8909-A]","jscount":"1","jsurl":"/simple-search?field1=all&field=dc.project.fundingorganization_filter&advanced=false&query1=HANDBOOK&&fq=dc.project.title_filter%3ACouncil%5C+of%5C+Scientific%5C+and%5C+Industrial%5C+Research%2C%5C+New%5C+Delhi%5C%5B8909%5C-A%5C%5D"},{"jsname":"In order to investigate the indole alkaloids, this thesis studied on the chemical constituents of two plants, Neolamarckia cadamba and Plumeria rubra. Forty–one compounds, including ten new compounds were isolated, and the biogenetic pathways of them were proposed.Chapter 1: Study on Chemical Constituents of Neolamarckia cadamba, Thirty–seven compounds were isolated from the leaves of the Neolamarckia cadamba, and thirty–three of them were identified, including ten new compounds. The structural types of these compounds are mainly monoterpenoid indole alkaloids. Among them, compounds 1, 2, 3, 4 and 5 are considered to be derived biogenetically from the corresponding glycosidic indole alkaloids by introducing the third nitrogen atom into their E ring respectively by the double Mannich–like condensation. It is the first sample that monoterpenoid indole alkaloids could be further modified by amino acids. There is also a novel rearrangement indole alkaloid (compound 6) isolated from this genus.Chapter 2: Study on Chemical Constituents of Plumeria rubra, Four compounds were isolated from the leaves of the Plumeria rubra, and all of them were identified as monoterpenoid indole alkaloids.Chapter 3: Review,Review on the plumeria type compounds, including the chemical structural types, the bioactivity and the plant sources","jscount":"1","jsurl":"/simple-search?field1=all&field=dc.project.fundingorganization_filter&advanced=false&query1=HANDBOOK&&fq=dc.project.title_filter%3AIn%5C+order%5C+to%5C+investigate%5C+the%5C+indole%5C+alkaloids%2C%5C+this%5C+thesis%5C+studied%5C+on%5C+the%5C+chemical%5C+constituents%5C+of%5C+two%5C+plants%2C%5C+Neolamarckia%5C+cadamba%5C+and%5C+Plumeria%5C+rubra.%5C+Forty%E2%80%93one%5C+compounds%2C%5C+including%5C+ten%5C+new%5C+compounds%5C+were%5C+isolated%2C%5C+and%5C+the%5C+biogenetic%5C+pathways%5C+of%5C+them%5C+were%5C+proposed.Chapter%5C+1%5C%3A%5C+Study%5C+on%5C+Chemical%5C+Constituents%5C+of%5C+Neolamarckia%5C+cadamba%2C%5C+Thirty%E2%80%93seven%5C+compounds%5C+were%5C+isolated%5C+from%5C+the%5C+leaves%5C+of%5C+the%5C+Neolamarckia%5C+cadamba%2C%5C+and%5C+thirty%E2%80%93three%5C+of%5C+them%5C+were%5C+identified%2C%5C+including%5C+ten%5C+new%5C+compounds.%5C+The%5C+structural%5C+types%5C+of%5C+these%5C+compounds%5C+are%5C+mainly%5C+monoterpenoid%5C+indole%5C+alkaloids.%5C+Among%5C+them%2C%5C+compounds%5C+1%2C%5C+2%2C%5C+3%2C%5C+4%5C+and%5C+5%5C+are%5C+considered%5C+to%5C+be%5C+derived%5C+biogenetically%5C+from%5C+the%5C+corresponding%5C+glycosidic%5C+indole%5C+alkaloids%5C+by%5C+introducing%5C+the%5C+third%5C+nitrogen%5C+atom%5C+into%5C+their%5C+E%5C+ring%5C+respectively%5C+by%5C+the%5C+double%5C+Mannich%E2%80%93like%5C+condensation.%5C+It%5C+is%5C+the%5C+first%5C+sample%5C+that%5C+monoterpenoid%5C+indole%5C+alkaloids%5C+could%5C+be%5C+further%5C+modified%5C+by%5C+amino%5C+acids.%5C+There%5C+is%5C+also%5C+a%5C+novel%5C+rearrangement%5C+indole%5C+alkaloid%5C+%5C%28compound%5C+6%5C%29%5C+isolated%5C+from%5C+this%5C+genus.Chapter%5C+2%5C%3A%5C+Study%5C+on%5C+Chemical%5C+Constituents%5C+of%5C+Plumeria%5C+rubra%2C%5C+Four%5C+compounds%5C+were%5C+isolated%5C+from%5C+the%5C+leaves%5C+of%5C+the%5C+Plumeria%5C+rubra%2C%5C+and%5C+all%5C+of%5C+them%5C+were%5C+identified%5C+as%5C+monoterpenoid%5C+indole%5C+alkaloids.Chapter%5C+3%5C%3A%5C+Review%2CReview%5C+on%5C+the%5C+plumeria%5C+type%5C+compounds%2C%5C+including%5C+the%5C+chemical%5C+structural%5C+types%2C%5C+the%5C+bioactivity%5C+and%5C+the%5C+plant%5C+sources"},{"jsname":"Interdisciplinary Research Project of Kunming Institute of Botany[KIB2017003]","jscount":"1","jsurl":"/simple-search?field1=all&field=dc.project.fundingorganization_filter&advanced=false&query1=HANDBOOK&&fq=dc.project.title_filter%3AInterdisciplinary%5C+Research%5C+Project%5C+of%5C+Kunming%5C+Institute%5C+of%5C+Botany%5C%5BKIB2017003%5C%5D"},{"jsname":"Keynote Projects of the National Natural Science Foundation of China[40830209]","jscount":"1","jsurl":"/simple-search?field1=all&field=dc.project.fundingorganization_filter&advanced=false&query1=HANDBOOK&&fq=dc.project.title_filter%3AKeynote%5C+Projects%5C+of%5C+the%5C+National%5C+Natural%5C+Science%5C+Foundation%5C+of%5C+China%5C%5B40830209%5C%5D"},{"jsname":"lastIndexed","jscount":"2024-09-19"}],"资助项目","dc.project.title_filter")'>
|
|
|
|
|
