TY - JOUR
T1 - Evidence from 18S ribosomal RNA sequences that lampreys and hagfishes form a natural group
AU - Stock, David W.
AU - Whitt, Gregory S.
PY - 1992
Y1 - 1992
N2 - Lampreys and hagfishes (cyclostomes) traditionally were considered to be a natural (monophyletic) group. Recently, the consensus of opinion, based largely on morphological analyses, has shifted to a view that lampreys are more closely related to jawed vertebrates (gnathostomes) than to hagfishes. Phylogenetic comparisons of 18S ribosomal RNA sequences from two hagfishes, two lampreys, a tunicate, a lancelet, and a number of gnathostomes support the monophyly of the cyclostomes. These data force a reassessment of several features of early vertebrate evolution.
AB - Lampreys and hagfishes (cyclostomes) traditionally were considered to be a natural (monophyletic) group. Recently, the consensus of opinion, based largely on morphological analyses, has shifted to a view that lampreys are more closely related to jawed vertebrates (gnathostomes) than to hagfishes. Phylogenetic comparisons of 18S ribosomal RNA sequences from two hagfishes, two lampreys, a tunicate, a lancelet, and a number of gnathostomes support the monophyly of the cyclostomes. These data force a reassessment of several features of early vertebrate evolution.
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U2 - 10.1126/science.1496398
DO - 10.1126/science.1496398
M3 - Article
C2 - 1496398
AN - SCOPUS:0026645940
SN - 0036-8075
VL - 257
SP - 787
EP - 789
JO - Science
JF - Science
IS - 5071
ER -