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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Zhang, Bo
- Lyapunov Functions in Weak Exponential Stability and Controlled Stochastic Systems
Abstract Views :151 |
PDF Views:0
Authors
Allanus H. Tsoi
1,
Bo Zhang
1
Affiliations
1 Department of Mathematics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, HK
1 Department of Mathematics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, HK
Source
Journal of the Ramanujan Mathematical Society, Vol 11, No 2 (1996), Pagination: 85-102Abstract
The concept of weak exponential stability of stochastic differential equations has been introduced in [14]. In this paper, we discuss the existence of a Lyapunov function related to weak exponential stability in mean. We then study the stabilization of a class of controlled stochastic systems.Keywords
Weakly Exponential Stability, Stochastic Differential Systems, Controllability.
- Transcriptome Analysis Identifies the Key Genes Responsible for High Anthocyanin Content in the Fruits of Lycium ruthenicum Murray
Abstract Views :167 |
PDF Views:71
Authors
Xuebin Zhu
1,
Jianmin Li
2,
Yuan Zong
1,
Xuemei Sun
3,
Shiming Li
1,
Dong Cao
1,
Bo Zhang
1,
Wenjie Chen
1,
Baolong Liu
1
Affiliations
1 Qinghai Province Key Laboratory of Crop Molecular Breeding, Xining 810008, CN
2 College of Biologic and Geographic Sciences, Qinghai Normal University, Xining 810008, CN
3 State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 800010, CN
1 Qinghai Province Key Laboratory of Crop Molecular Breeding, Xining 810008, CN
2 College of Biologic and Geographic Sciences, Qinghai Normal University, Xining 810008, CN
3 State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 800010, CN
Source
Current Science, Vol 116, No 2 (2019), Pagination: 256-263Abstract
Lycium ruthenicum Murray (black wolfberry) is an important economic plant producing black fruit with high anthocyanin content. The transcriptome of its fruits was compared with that of Lycium barbarum L. (wolfberry), which produces orange-red fruits, with its pigmentation depending largely on carotenoids, with the aim of identifying the key genes responsible for anthocyanin accumulation through RNA sequencing. A total of 32.05 and 28.52 Gb clean reads was obtained after filtering in L. barbarum and L. ruthenicum respectively. Altogether 192,869 unigenes were assembled with an average length of 1064 bp. These unigenes were predicted to encode 152,209 specific proteins with the help of protein databases. Compared with L. barbarum, 733,070 genes were upregulated while 25,779 genes appeared downregulated in the fruits of L. ruthenicum. The genes of the anthocyanin biosynthesis pathway exhibited more differences between the two species than did those of any other biosynthetic pathway. All structural genes in connection with anthocyanin biosynthesis had higher expression level in L. ruthenicum than in L. barbarum, except F3′H and 3GT. The downregulation of F′H and 3GT in L. ruthenicum would be responsible for the absence of cyanidin and glycosylation in this species. The MYB and bHLH genes regulating anthocyanin biosynthesis also displayed higher transcript levels in L. ruthenicum than in L. barbarum, especially the MYB transcription factor gene, which should be the reason for the activation of the anthocyanin biosynthesis structural genes. More work should be carried out to isolate the MYB and bHLH transcription factor genes, and to confirm their functions in producing the pigments found in the black fruits of L. ruthenicum.Keywords
Anthocyanin Biosynthesis, Key Genes, Transcriptome Analysis, Wolfberry.Full Text
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