Motif types, motif locations and base composition patterns around the RNA polyadenylation site in microorganisms, plants and animals

Table 3 Base abundance values at the peak locations of the upstream A-rich region and the upstream U-rich region as compared between plants and animals

Subkingdom	Upstream A peak (at position −21)	Upstream A peak (at position −18)	Upstream U peak (at position −9)	Upstream U peak (at position −7)
Dicotyledonous plants¹	41.03 B	39.69 B	47.38 A	56.18 A
Monocotyledonous plants²	37.84 B	35.32 C	44.37 AB	47.48 B
Non-mammal animals³	50.14 A	53.89 A	42.85 B	35.36 C
Mammals⁴	49.12 A	54.67 A	42.14 B	35.10 C
Mean	44.53	45.89	44.19	43.53

The bold values are the peak values in Figure 5. The position (see Figure 5) is indicated in terms of nucleotides from the polyadenylation [poly(A)] tail starting position, i.e., the first A of the poly(A) tail.
¹Dicotyledonous plants: Arabidopsis thaliana, Medicago truncatula, Populus trichocarpa, and Solanum lycopersicum.
²Monocotyledonous plants: Oryza sativa, Sorghum bicolor, and Zea mays. The upstream U peak in monocotyledonous plants was shared between positions −7 and −8 (see Figure 5 for the positions).
³Non-mammal animals: Danio rerio, Drosophila melanogaster, Gallus gallus, and Taeniopygia guttata.
⁴Mammals: Bos taurus, Homo sapiens, Mus musculus, Pongo abelii, and Rattus norvegicus.
Note that plants and animals were found to be different in terms of peak locations. At these locations, the subkingdom base frequency values are more similar within the same kingdom than between kingdoms. Means with the same letter are not significantly different (P < 0.05) according to ANOVA and Duncan’s multiple range test.

ISSN: 2730-7182