Comparing matK and rbcL Sequences Among Jasminum grandiflorum Jasminum sambac AND Jasminum Nitidum

DNA barcodes are used to assign samples of unknown origin to specific taxonomic groups i.e., short DNA sequences (600-800bp) of a standard segment for species identification. In my study, I used the matK and rbcL barcode sequences to identify the Jasminum grandiflorum, Jasminum sambac and Jasminum n...

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Main Author: Lam, Chi Yan
Format: Thesis
Language:English
Published: 2015
Subjects:
Online Access:http://eprints.intimal.edu.my/427/
http://eprints.intimal.edu.my/427/1/BBTEI%20-%2069.pdf
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author Lam, Chi Yan
author_facet Lam, Chi Yan
author_sort Lam, Chi Yan
building INTI Institutional Repository
collection Online Access
description DNA barcodes are used to assign samples of unknown origin to specific taxonomic groups i.e., short DNA sequences (600-800bp) of a standard segment for species identification. In my study, I used the matK and rbcL barcode sequences to identify the Jasminum grandiflorum, Jasminum sambac and Jasminum nitidum. In these species, Edwards’s method was able to provide of sufficient quality and quantity of DNA for PCR. In my results, the matK gene showed ease of amplification compared to rbcL gene. The second trial of marK with diluted DNA samples show higher success rate. For species discrimination, the neighbor-joining tree was used to construct phylogenetic trees based on T92 model as it was the best lit sequence model based on mwK and rbcL gene. Based on the maiK gene, J, grandiflorum is more closely related to J. sambac (Distance= 0.010) then J. nitidum (Distance 0.020); while based on the rbcL gene. J. sambac is more closely related to J. nitidum (Distance= 0.007) then J. grandiflorum (Distance= 0.018). Although the tree topology based on maiK and rbcL genes were different, the individuals of the three species grouped together. Hence, J. sambac, J. grandiflorum and J. nitidum can be identified using marK and rbcL gene. Further research to identify and compare with other Jasminum species is needed.
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spelling intimal-4272016-08-01T05:57:21Z http://eprints.intimal.edu.my/427/ Comparing matK and rbcL Sequences Among Jasminum grandiflorum Jasminum sambac AND Jasminum Nitidum Lam, Chi Yan TP Chemical technology DNA barcodes are used to assign samples of unknown origin to specific taxonomic groups i.e., short DNA sequences (600-800bp) of a standard segment for species identification. In my study, I used the matK and rbcL barcode sequences to identify the Jasminum grandiflorum, Jasminum sambac and Jasminum nitidum. In these species, Edwards’s method was able to provide of sufficient quality and quantity of DNA for PCR. In my results, the matK gene showed ease of amplification compared to rbcL gene. The second trial of marK with diluted DNA samples show higher success rate. For species discrimination, the neighbor-joining tree was used to construct phylogenetic trees based on T92 model as it was the best lit sequence model based on mwK and rbcL gene. Based on the maiK gene, J, grandiflorum is more closely related to J. sambac (Distance= 0.010) then J. nitidum (Distance 0.020); while based on the rbcL gene. J. sambac is more closely related to J. nitidum (Distance= 0.007) then J. grandiflorum (Distance= 0.018). Although the tree topology based on maiK and rbcL genes were different, the individuals of the three species grouped together. Hence, J. sambac, J. grandiflorum and J. nitidum can be identified using marK and rbcL gene. Further research to identify and compare with other Jasminum species is needed. 2015 Thesis NonPeerReviewed text en http://eprints.intimal.edu.my/427/1/BBTEI%20-%2069.pdf Lam, Chi Yan (2015) Comparing matK and rbcL Sequences Among Jasminum grandiflorum Jasminum sambac AND Jasminum Nitidum. Other thesis, INTI International University.
spellingShingle TP Chemical technology
Lam, Chi Yan
Comparing matK and rbcL Sequences Among Jasminum grandiflorum Jasminum sambac AND Jasminum Nitidum
title Comparing matK and rbcL Sequences Among Jasminum grandiflorum Jasminum sambac AND Jasminum Nitidum
title_full Comparing matK and rbcL Sequences Among Jasminum grandiflorum Jasminum sambac AND Jasminum Nitidum
title_fullStr Comparing matK and rbcL Sequences Among Jasminum grandiflorum Jasminum sambac AND Jasminum Nitidum
title_full_unstemmed Comparing matK and rbcL Sequences Among Jasminum grandiflorum Jasminum sambac AND Jasminum Nitidum
title_short Comparing matK and rbcL Sequences Among Jasminum grandiflorum Jasminum sambac AND Jasminum Nitidum
title_sort comparing matk and rbcl sequences among jasminum grandiflorum jasminum sambac and jasminum nitidum
topic TP Chemical technology
url http://eprints.intimal.edu.my/427/
http://eprints.intimal.edu.my/427/1/BBTEI%20-%2069.pdf