New 11(15→1) Abeotaxane, 11(15→1), 11(10→9)Bisabeotaxane and 3,11-Cyclotaxanes from Taxus yunnanensis

2001 ◽  
Vol 65 (1) ◽  
pp. 35-40 ◽  
Author(s):  
Hiromasa KIYOTA ◽  
Qing-wen SHI ◽  
Takayuki ORITANI ◽  
Ligeng LI
Keyword(s):  
Taxus Yunnanensis

Taxayuntin E and F: Two taxanes from leaves and stems of Taxus yunnanensis

1995 ◽  
Vol 39 (4) ◽  
pp. 871-873 ◽  
Author(s):  
Qin Yue ◽  
Qi-Cheng Fang ◽  
Xiao-Tian Liang ◽  
Cun-Heng He
Keyword(s):  
Taxus Yunnanensis

Cloning of taxane 2α-O-benzoyltransferase (TBT) genomic DNA from Taxus

Biologia ◽  
2006 ◽  
Vol 61 (3) ◽  
Author(s):  
Dongli Zhao ◽  
Le Li ◽  
Qian Wang ◽  
Guoyin Kai ◽  
Xiang Wang ◽  
...  
Keyword(s):  
Genomic Dna ◽  
Cdna Sequence ◽  
Gene Diversity ◽  
Genomic Sequences ◽  
Taxus Yunnanensis ◽  
Sequence Encoding ◽  
First Time

AbstractBased on the cDNA sequence encoding taxane 2α-O-benzoyltransferase (TBT) from Taxus yunnanensis (Gen-Bank Accession No.: AY970522), genomic sequences of TBTs from T. yunnanensis (TyTBT) and T. cuspidata (TcuTBT) were cloned for the first time. They both contain only one intron. The finding that the introns of TyTBT and TcuTBT are more diverse than their exons implies that the gene diversity is more within introns than within exons, which may be important for keeping the functions of the genes.

scholarly journals Low genetic diversity in the endangered Taxus yunnanensis following a population bottleneck, a low effective population size and increased inbreeding

2016 ◽  
Vol 65 (1) ◽  
pp. 59-66 ◽  
Author(s):  
Y. C. Miao ◽  
Z. J. Zhang ◽  
J. R. Su
Keyword(s):  
Genetic Diversity ◽  
Habitat Fragmentation ◽  
Population Size ◽  
Effective Population Size ◽  
Spatial Genetic Structure ◽  
Population Bottleneck ◽  
Effective Population ◽  
Taxus Yunnanensis ◽  
Low Genetic Diversity ◽  
Two Populations

Abstract Taxus yunnanensis, which is an endangered tree that is considered valuable because it contains the effective natural anticancer metabolite taxol and heteropolysaccharides, has long suffered from severe habitat fragmentation. In this study, the levels of genetic diversity in two populations of 136 individuals were analyzed based on eleven polymorphic microsatellite loci. Our results suggested that these two populations were characterized by low genetic diversity (NE = 2.303/2.557; HO = 0.168/0.142; HE = 0.453/0.517), a population bottleneck, a low effective population size (Ne = 7/9), a high level of inbreeding (FIS = 0.596/0.702), and a weak, but significant spatial genetic structure (Sp = 0.001, b = −0.001*). Habitat fragmentation, seed shadow overlap and limited seed and pollen dispersal and potential selfing may have contributed to the observed gene tic structure. The results of the present study will enable development of practical conservation measures to effectively conserve the valuable genetic resources of this endangered plant.

scholarly journals Genome mining of a fungal endophyte of Taxus yunnanensis (Chinese yew) leads to the discovery of a novel azaphilone polyketide, lijiquinone

2020 ◽  
Vol 13 (5) ◽  
pp. 1415-1427 ◽  
Author(s):  
Jesse W. Cain ◽  
Kristin I. Miller ◽  
John A. Kalaitzis ◽  
Rocky Chau ◽  
Brett A. Neilan
Keyword(s):  
Genome Mining ◽  
Fungal Endophyte ◽  
Taxus Yunnanensis

Yunantaxusin A, a New 11(15→1)-abeo-Taxane from Taxus yunnanensis

1994 ◽  
Vol 57 (11) ◽  
pp. 1580-1583 ◽  
Author(s):  
Shunxiang Zhang ◽  
Catherine Tung-Ling Lee ◽  
Yoshiki Kashiwada ◽  
Ke Chen ◽  
De-Cheng Zhang ◽  
...  
Keyword(s):  
Taxus Yunnanensis

Structural characterization and in vitro antitumor activity of a novel polysaccharide from Taxus yunnanensis

2013 ◽  
Vol 96 (2) ◽  
pp. 389-395 ◽  
Author(s):  
Chunyan Yan ◽  
Yin Yin ◽  
Dawei Zhang ◽  
Wei Yang ◽  
Rongmin Yu
Keyword(s):  
Antitumor Activity ◽  
Structural Characterization ◽  
Taxus Yunnanensis

ChemInform Abstract: Three New Taxanes from the Roots of Taxus yunnanensis.

ChemInform ◽  
2010 ◽  
Vol 25 (41) ◽  
pp. no-no
Author(s):  
H. ZHANG ◽  
Y. TAKEDA ◽  
Y. MINAMI ◽  
K. YOSHIDA ◽  
T. MATSUMOTO ◽  
...  
Keyword(s):  
Taxus Yunnanensis

Taxanes from Taxus Yunnanensis

1995 ◽  
Vol 39 (5) ◽  
pp. 1147-1151 ◽  
Author(s):  
H Zhang
Keyword(s):  
Taxus Yunnanensis
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