نتایج جستجو برای: marchantia convoluta
تعداد نتایج: 424 فیلتر نتایج به سال:
We propose a model of the doubling of a bacterial genome followed by gene order rearrangement to explain present-day patterns of duplicated genes. On the hypothesis that inversion (reversal) is the predominant mechanism of rearrangement, we ask how to reconstruct the ancestral genome at the moment of genome duplication. We present a polynomial algorithm for finding such a genome that minimizes ...
Bryophytes (liverworts, hornworts and mosses) comprise the three earliest diverging lineages of land plants (embryophytes). Marchantia polymorpha, a complex thalloid Marchantiopsida liverwort that has been developed into a model genetic system, occupies a key phylogenetic position. Therefore, M. polymorpha is useful in studies aiming to elucidate the evolution of gene regulation mechanisms in p...
The ammonium transporter gene family consists of three main clades, AMT, MEP, and Rh. The evolutionary history of the AMT/MEP/Rh gene family is characterized by multiple horizontal gene transfer events, gene family expansion and contraction, and gene loss; thus the gene tree for this family of transporters is unlike the organismal tree. The genomes of angiosperms contain genes for both electrog...
The phylogenetic relationships among 23 species of the tribe Tigridieae (lridaceae) were inferred using morphological data and nucleotide sequences from nuclear ITS and three intergenic spacers of the cpDNA: psbA-trnH, trnT-trnL, and trnL-trnE Although all data sets supported a monophyletic Mexican-Guatemalan Tigridiinae including two taxa usually placed in Cipurinae ( Cardiostigma longispatha ...
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