TABLE 1.

Numbers of clones and sequences in the studies summarized in this synthesis

Study subject and authors (reference no.)No. of data setsNo. of sequencesNo. of clones
>870 nt<800 nt
Archaea in total rumen contents
    Shin et al. (40)11040104
    Skillman et al. (42)110010
    Tajima et al. (48)18023
    Whitford et al. (52)141041
    Wright et al. (54)343a0405
    Wright et al. (55)126078
    Wright et al. (56)2280241
    Wright et al. (57)1140104
    Yanagita et al. (59)102020
Protozoan-associated archaea
    Chagan et al. (3)10891
    Irbis and Ushida (14)10142,398
    Ohene-Adjei et al. (32)10139139
    Regensbogenova et al. (37)111920
    Tokura et al. (50)10669
  • a An additional 26 sequences, representing 328 clones, were not included because they were withdrawn from GenBank.