A new leafy liverwort of Frullania (Frullaniaceae, Porellales) from the mid‐Cretaceous Kachin amber, Myanmar

2021 ◽  
Author(s):  
Ya Li ◽  
Yong‐Dong Wang ◽  
Kathrin Feldberg ◽  
Qiang Wang ◽  
Xiao‐Ju Yang
Keyword(s):  
Diversity ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 81
Author(s):  
Jakub Sawicki ◽  
Katarzyna Krawczyk ◽  
Monika Ślipiko ◽  
Monika Szczecińska

The leafy liverwort Nowellia curvifolia is a widespread Holarctic species belonging to the family Cephaloziaceae. It is made up of a newly sequenced, assembled and annotated organellar genomes of two European specimens, which revealed the structure typical for liverworts, but also provided new insights into its microevolution. The plastome of N. curvifolia is the second smallest among photosynthetic liverworts, with the shortest known inverted repeats. Moreover, it is the smallest liverwort genome with a complete gene set, since two smaller genomes of Aneura mirabilis and Cololejeunea lanciloba are missing six and four protein-coding genes respectively. The reduction of plastome size in leafy liverworts seems to be mainly impacted by deletion within specific region between psbA and psbD genes. The comparative intraspecific analysis revealed single SNPs difference among European individuals and a low number of 35 mutations differentiating European and North American specimens. However, the genetic resources of Asian specimen enabled to identify 1335 SNPs in plastic protein-coding genes suggesting an advanced cryptic speciation within N. curvifolia or the presence of undescribed morphospecies in Asia. Newly sequenced mitogenomes from European specimens revealed identical gene content and structure to previously published and low intercontinental differentiation limited to one substitution and three indels. The RNA-seq based RNA editing analysis revealed 17 and 127 edited sites in plastome and mitogenome respectively including one non-canonical editing event in plastid chiL gene. The U to C editing is common in non-seed plants, but in liverwort plastome is reported for the first time.


2021 ◽  
Vol 43 (2) ◽  
pp. 190-191
Author(s):  
Devendra Kumar Singh ◽  
◽  
Shuvadeep Majumdar ◽  
Devendra Singh ◽  
Eduardo Antonio Molinari Novoa ◽  
...  

The leafy liverwort genus Udaria D.K.Singh, S.Majumdar & D.Singh was recently described based on plants from Arunachal Pradesh and Sikkim in India. However, the name is a later homonym of Udaria A.Gupta, a fossil fungal genus discovered in Tertiary sediments of Dagshai and Subathu Formations in Himachal Pradesh, India. Hence, the liverwort genus is renamed here as Ramudaria, nom. nov. honouring the original eponym, Prof. Ram Udar. Its only species, Udaria lamellicaulis D.K.Singh, S.Majumdar & D.Singh is transferred to the newly named genus as Ramudaria lamellicaulis, comb. nov.


Biotropica ◽  
2015 ◽  
Vol 47 (2) ◽  
pp. 172-178 ◽  
Author(s):  
Charles E. Zartman ◽  
July A. Amaral ◽  
José N. Figueiredo ◽  
Cristian de Sales Dambros

PLoS ONE ◽  
2013 ◽  
Vol 8 (12) ◽  
pp. e82547 ◽  
Author(s):  
Jochen Heinrichs ◽  
Shanshan Dong ◽  
Alfons Schäfer-Verwimp ◽  
Tamás Pócs ◽  
Kathrin Feldberg ◽  
...  

2013 ◽  
Vol 58 (2) ◽  
pp. 481-489 ◽  
Author(s):  
David Meagher

Abstract Branching patterns in the leafy liverwort genus Bazzania Gray were investigated in twenty-five Australasian species. Terminal branching was found to be neither consistently sinistrorse nor consistently dextrorse, and neither consistently homodromous nor consistently antidromous. Microphyllous ventral-intercalary branches arising from stems usually have ‘siblings’ arising from main branches. The production of leafy ventral-intercalary branches is not necessarily associated with the termination of stems or main branches. These results are contrary to previous ideas about branching in Bazzania.


Check List ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 479-495
Author(s):  
Jainara Pereira Silva ◽  
Fúvio Rubens Oliveira-da-Silva ◽  
Anna Luiza Ilkiu-Borges ◽  
Rozijane Fernandes

Chapada das Mesas National Park (CMNP) is the fourth largest conservation unit in Maranhão state and an important area for the study of bryophytes due to its geomorphological characteristics, predominant vegetation, and water potential. The aim of our study was to investigate the richness and composition of leafy liverwort species in CMNP, discuss the importance of this area in the state, and present an updated checklist of the leafy liverworts for Maranhão. Our botanical material was collected during four excursions to the park. The checklist was mainly based on literature reports. Forty-one species and two varieties in eight families and 20 genera were identified in CMNP. From the state of Maranhão, 106 species and two varieties in nine families and 39 genera are reported. Our survey of bryophytes in CMNP resulted in the first records from Maranhão of 19 species. Lejeunea juruana Gradst. & M.E.Reiner is also newly found in the Northeastern region of Brazil and in the Cerrado domain.


Fossil Record ◽  
2017 ◽  
Vol 20 (2) ◽  
pp. 201-213 ◽  
Author(s):  
Julia Bechteler ◽  
Alexander R. Schmidt ◽  
Matthew A. M. Renner ◽  
Bo Wang ◽  
Oscar Alejandro Pérez-Escobar ◽  
...  

Abstract. DNA-based divergence time estimates suggested major changes in the composition of epiphyte lineages of liverworts during the Cretaceous; however, evidence from the fossil record is scarce. We present the first Cretaceous fossil of the predominantly epiphytic leafy liverwort genus Radula in ca. 100 Myr old Burmese amber. The fossil's exquisite preservation allows first insights into the morphology of early crown group representatives of Radula occurring in gymnosperm-dominated forests. Ancestral character state reconstruction aligns the fossil with the crown group of Radula subg. Odontoradula; however, corresponding divergence time estimates using the software BEAST lead to unrealistically old age estimates. Alternatively, assignment of the fossil to the stem of subg. Odontoradula results in a stem age estimate of Radula of 227.8 Ma (95 % highest posterior density (HPD): 165.7–306.7) and a crown group estimate of 176.3 Ma (135.1–227.4), in agreement with analyses employing standard substitution rates (stem age 235.6 Ma (142.9–368.5), crown group age 183.8 Ma (109.9–289.1)). The fossil likely belongs to the stem lineage of Radula subg. Odontoradula. The fossil's modern morphology suggests that switches from gymnosperm to angiosperm phorophytes occurred without changes in plant body plans in epiphytic liverworts. The fossil provides evidence for striking morphological homoplasy in time. Even conservative node assignments of the fossil support older rather than younger age estimates of the Radula crown group, involving origins for most extant subgenera by the end of the Cretaceous and diversification of their crown groups in the Cenozoic.


Taxon ◽  
2011 ◽  
Vol 60 (6) ◽  
pp. 1623-1632 ◽  
Author(s):  
Nicolas Devos ◽  
Matt A.M Renner ◽  
S. Robbert Gradstein ◽  
Jon Shaw ◽  
Alain Vanderpoorten

2020 ◽  
Vol 108 ◽  
pp. 104341
Author(s):  
Ya Li ◽  
Yong-Dong Wang ◽  
Harald Schneider ◽  
Peng-Cheng Wu
Keyword(s):  

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