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Table 1 A comparison of hypotheses on the scenario of the origin of translation.

From: The scenario on the origin of translation in the RNA world: in principle of replication parsimony

Hp: No. name [ref.]
Author(s)
Peptides' specificity tRNAs mRNAs rRNAs aa-tRNA
specificity
   Ad. Or. Ad. Or. Ad. Or.  
1. DRT [20, 22]
Yarus et al.
+ + O - O O O O
2. GT [28, 29]
Weiner & Maizels
O O + - - - - -
3. CCH [15, 30]
Szathmary
O O + + - - - +
4. TR [53] Gordon;
[54] Poole et al.
O + + - O O + -
5. [16] Wolf & Koonin + + + - O + + O
6. [1] Crick et al. O O - - - O - -
7. [55] Knight
& Landweber
O O O O - - - +
8. [56] Di Giulio O O O - - O - -
9. [57] Noller O O - - - O + -
10. [50] Brosius - O + - O O + -
11. [51] Schimmel
& Henderson
- O + - O O - -
12. [52] Bernhardt
& Tate
- O + + O O - -
13. [39] Baranov et al. - O + - O O - -
14. [49] Yakhnin N/A + + - O O + -
▲ DRT-RP + + + + + + - +
  1. The names of hypotheses: DRT (Direct RNA Templating); GT (Genomic Tag); CCH (Coding Coenzyme Handles); TR (Triplet Replicase); ▲DRT-RP (Direct RNA Template - Replication Parsimony), the present hypothesis; the others were not given a name. For tRNAs, mRNAs and rRNAs, "Ad." means "the direct advantage of their emergence", while "Or." means "the original source of their emergence". In general, "+" means "clearly stated"; "-" means "not stated"; "O" means "implied or stated in an abstract way"; "N/A" means "Not Applicable"; "▲" means "associated with the present hypothesis". See text for detailed explanations.
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