I report new, world-leading LHCb results on heavy meson lifetimes. We use a
novel approach that suppresses the shortcomings typically associated with
reconstruction of semileptonic decays, allowing for precise measurements of
lifetimes and other properties in collider experiments. We achieve a 15% and a
$2\times$ improvement over current best determinations of the flavor-specific
$B^0_s$ lifetime and $D^-_s$ lifetime, respectively.Comment: 12 pages, 6 figures. Talk presented at the APS Division of Particles
  and Fields Meeting (DPF 2017), July 31-August 4, 2017, Fermilab. C17073

Bing Xi (4177780)

Dong Zhang (73558)

Gui Wang (771836)

Hong Zou (112099)

Kellyanne Boyce (4177783)

Ming Li (91180)

Shan Wu (67551)

Wen Li (143214)

Parasites & Vectors

English

arXiv

Mitochondrial gene order (include non-coding regions) of the 54 cestode species in this study. (PDF 3548Â kb

FigShare

Additional file 6: Figure S3. of The complete mitochondrial DNA of three monozoic tapeworms in the Caryophyllidea: a mitogenomic perspective on the phylogeny of eucestodes

Background: External segmentation and internal proglottization are important evolutionary characters of the Eucestoda. The monozoic caryophyllideans are considered the earliest diverging eucestodes based on partial mitochondrial genes and nuclear rDNA sequences, yet, there are currently no complete mitogenomes available. We have therefore sequenced the complete mitogenomes of three caryophyllideans, as well as the polyzoic Schyzocotyle acheilognathi, explored the phylogenetic relationships of eucestodes and compared the gene arrangements between unsegmented and segmented cestodes. Results: The circular mitogenome of Atractolytocestus huronensis was 15,130 bp, the longest sequence of all the available cestodes, 14,620 bp for Khawia sinensis, 14,011 bp for Breviscolex orientalis and 14,046 bp for Schyzocotyle acheilognathi. The A-T content of the three caryophyllideans was found to be lower than any other published mitogenome. Highly repetitive regions were detected among the non- coding regions (NCRs) of the four cestode species. The evolutionary relationship determined between the five orders (Caryophyllidea, Diphyllobothriidea, Bothriocephalidea, Proteocephalidea and Cyclophyllidea) is consistent with that expected from morphology and the large fragments of mtDNA when reconstructed using all 36 genes. Examination of the 54 mitogenomes from these five orders, revealed a unique arrangement for each order except for the Cyclophyllidea which had two types that were identical to that of the Diphyllobothriidea and the Proteocephalidea. When comparing gene order between the unsegmented and segmented cestodes, the segmented cestodes were found to have the lower similarities due to a long distance transposition event. All rearrangement events between the four arrangement categories took place at the junction of rrnS-tRNA(Arg) (P1) where NCRs are common. Conclusions: Highly repetitive regions are detected among NCRs of the four cestode species. A long distance transposition event is inferred between the unsegmented and segmented cestodes. Gene arrangements of Taeniidae and the rest of the families in the Cyclophyllidea are found be identical to those of the sister order Proteocephalidea and the relatively basal order Diphyllobothriidea, respectively.</p

Li, Wen X.

Zhang, Dong

Boyce, Kellyanne

Xi, Bing W.

Zou, Hong

Wu, Shan G.

Li, Ming

Wang, Gui T.

Institute of Hydrobiology, Chinese Academy Of Sciences

The complete mitochondrial DNA of three monozoic tapeworms in the Caryophyllidea: a mitogenomic perspective on the phylogeny of eucestodes

Abstract Background External segmentation and internal proglottization are important evolutionary characters of the Eucestoda. The monozoic caryophyllideans are considered the earliest diverging eucestodes based on partial mitochondrial genes and nuclear rDNA sequences, yet, there are currently no complete mitogenomes available. We have therefore sequenced the complete mitogenomes of three caryophyllideans, as well as the polyzoic Schyzocotyle acheilognathi, explored the phylogenetic relationships of eucestodes and compared the gene arrangements between unsegmented and segmented cestodes. Results The circular mitogenome of Atractolytocestus huronensis was 15,130 bp, the longest sequence of all the available cestodes, 14,620 bp for Khawia sinensis, 14,011 bp for Breviscolex orientalis and 14,046 bp for Schyzocotyle acheilognathi. The A-T content of the three caryophyllideans was found to be lower than any other published mitogenome. Highly repetitive regions were detected among the non-coding regions (NCRs) of the four cestode species. The evolutionary relationship determined between the five orders (Caryophyllidea, Diphyllobothriidea, Bothriocephalidea, Proteocephalidea and Cyclophyllidea) is consistent with that expected from morphology and the large fragments of mtDNA when reconstructed using all 36 genes. Examination of the 54 mitogenomes from these five orders, revealed a unique arrangement for each order except for the Cyclophyllidea which had two types that were identical to that of the Diphyllobothriidea and the Proteocephalidea. When comparing gene order between the unsegmented and segmented cestodes, the segmented cestodes were found to have the lower similarities due to a long distance transposition event. All rearrangement events between the four arrangement categories took place at the junction of rrnS-tRNA Arg (P1) where NCRs are common. Conclusions Highly repetitive regions are detected among NCRs of the four cestode species. A long distance transposition event is inferred between the unsegmented and segmented cestodes. Gene arrangements of Taeniidae and the rest of the families in the Cyclophyllidea are found be identical to those of the sister order Proteocephalidea and the relatively basal order Diphyllobothriidea, respectively

Wen X. Li

Dong Zhang

Kellyanne Boyce

Bing W. Xi

Hong Zou

Shan G. Wu

Ming Li

Gui T. Wang

Directory of Open Access Journals

Primers used to amplify and sequence the mitochondrial genome of the cestodes Atractolytocestus huronensis, Khawia sinensis, Breviscolex orientalis and Schyzocotyle acheilognathi (CN). (XLSX 26Â kb

Additional file 1: Table S1. of The complete mitochondrial DNA of three monozoic tapeworms in the Caryophyllidea: a mitogenomic perspective on the phylogeny of eucestodes

Secondary structure (lacking DHU arms) of the tRNA genes of the cestodes Atractolytocestus huronensis, Khawia sinensis, Breviscolex orientalis and Schyzocotyle acheilognathi (CN). (PDF 472Â kb

Additional file 5: Figure S2. of The complete mitochondrial DNA of three monozoic tapeworms in the Caryophyllidea: a mitogenomic perspective on the phylogeny of eucestodes

The sequence alignment of the first 200Â bp of the 16S rRNA gene from the 54 cestode species in this study. (PDF 635Â kb

Additional file 7: Figure S4. of The complete mitochondrial DNA of three monozoic tapeworms in the Caryophyllidea: a mitogenomic perspective on the phylogeny of eucestodes

https://figshare.com/articles/Additional_file_6_Figure_S3_of_The_complete_mitochondrial_DNA_of_three_monozoic_tapeworms_in_the_Caryophyllidea_a_mitogenomic_perspective_on_the_phylogeny_of_eucestodes/5150851