Libary (na) Richennesb ACEc Chao1d Shannone 1/Simpsonf
alk (cut-off 93%)          
GMR75 (63) 10 14 12 1.69 4.52
PTS01 (87) 5 9.21 6.5 0.80 1.60
ARHD (cut-off 96%)          
GMR75 (88) 4 4 4 1.15 2,90
PTS01 (80) 7 13 9 1.34 3.48
bamA (cut-off 97%)          
GMR75 (90) 7 20 9 1.16 2.66
PTS01 (93) 6 7 6 0.97 1.99
aNumber of gene sequences analyzed.
bRichness is based on observed unique OTUs.
c Nonparametric statistical prediction of total richness of different OTUs and OPFs based on distribution of abundant (10) and rare (10) OTUs.
d Nonparametric statistical predictions of total richness of OTUs and OPFs based on distribution of singletons and doubletons.
e Shannon diversity index. A higher number represents more diversity.
f Reciprocal of Simpson’s diversity index. A higher number represents more diversity.
Table 3: Diversity indices and richness estimators of the functional gene clone libraries.