Significance and Biological Consequences of Polyploidization in Land Plant Evolution

2012 ◽  
pp. 277-293 ◽  
Author(s):  
Jeffrey A. Fawcett ◽  
Yves Van de Peer ◽  
Steven Maere
2013 ◽  
Vol 2013 ◽  
pp. 1-14 ◽  
Author(s):  
Maria S. Krasnikova ◽  
Denis V. Goryunov ◽  
Alexey V. Troitsky ◽  
Andrey G. Solovyev ◽  
Lydmila V. Ozerova ◽  
...  

PCR-based approach was used as a phylogenetic profiling tool to probe genomic DNA samples from representatives of evolutionary distant moss taxa, namely, classes Bryopsida, Tetraphidopsida, Polytrichopsida, Andreaeopsida, and Sphagnopsida. We found relatives of allPhyscomitrella patensmiR390 and TAS3-like loci in these plant taxa excluding Sphagnopsida. Importantly, cloning and sequencing ofMarchantia polymorphagenomic DNA showed miR390 and TAS3-like sequences which were also found among genomic reads ofM. polymorphaat NCBI database. Our data suggest that the ancient plant miR390-dependent TAS molecular machinery firstly evolved to target AP2-like mRNAs in Marchantiophyta and only then both ARF- and AP2-specific mRNAs in mosses. The presented analysis shows that moss TAS3 families may undergone losses of tasiAP2 sites during evolution toward ferns and seed plants. These data confirm that miR390-guided genes coding for ARF- and AP2-specific ta-siRNAs have been gradually changed during land plant evolution.


2019 ◽  
Vol 319 (1) ◽  
pp. 1-43 ◽  
Author(s):  
Daniel E. Ibarra ◽  
Jeremy K. Caves Rugenstein ◽  
Aviv Bachan ◽  
Andrés Baresch ◽  
Kimberly V. Lau ◽  
...  

Nature Plants ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 107-118 ◽  
Author(s):  
Jian Zhang ◽  
Xin-Xing Fu ◽  
Rui-Qi Li ◽  
Xiang Zhao ◽  
Yang Liu ◽  
...  

1986 ◽  
Vol 123 (4) ◽  
pp. 445-454 ◽  
Author(s):  
J. Gray ◽  
J. N. Theron ◽  
A. J. Boucot

AbstractThe first occurrence of Early Paleozoic land plants is reported from South Africa. The plant remains are small, compact tetrahedral spore tetrads. They occur abundantly in the Soom Shale Member of the Cedarberg Formation, Table Mountain Group. Marine? phytoplankton (sphaeromorphs or leiospheres) occur with the spore tetrads in all samples. Rare chitinozoans are found in half the samples. Together with similar spore tetrads from the Paraná Basin (Gray et al. 1985) these are the first well-documented records of Ashgill and/or earlier Llandovery land plants from the Malvinokaffric Realm, and from the African continent south of Libya. These spore tetrads have botanical, evolutionary, and biogeographic significance. Their size in comparison with spore tetrads from stratigraphic sections throughout eastern North America, suggests that an earliest Llandovery age is more probable for the Soom Shale Member, although a latest Ordovician age cannot be discounted. The age of the brachiopods in the overlying Disa Siltstone Member has been in contention for over a decade. Both Ashgillian and Early Llandovery ages have been proposed. The age of the underlying Soom Shale Member based on plant spores and trilobites (earliest Llandovery or latest Ashgillian) suggests that the Disa Siltstone Member is also likely to be of Early Llandovery age, although the distance between the Soom Shale Member spore-bearing locality and rocks to the south yielding abundant invertebrate body fossils at one locality is great enough to permit diachroneity.


2004 ◽  
Vol 58 (2) ◽  
pp. 154-162 ◽  
Author(s):  
Stefan A. Rensing ◽  
Justine Kiessling ◽  
Ralf Reski ◽  
Eva L. Decker

2015 ◽  
Vol 290 (21) ◽  
pp. 13104-13114 ◽  
Author(s):  
Beatrix Dünschede ◽  
Chantal Träger ◽  
Christine Vera Schröder ◽  
Dominik Ziehe ◽  
Björn Walter ◽  
...  

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