Biology Reference
In-Depth Information
Figure 13.3
Two hypotheses for the formation of 13- and 17-year lineages of the
Magicicada
septendecim
,
tredecim
, and
neotredecim
group. A) The evolution of
neotredecim
involved one evolution-
ary event (labeled 2). B) Alternatively, the evolution of
neotredecim
involved two separate events
(labeled 2 and 3). The models assume that
tredecim
populations were ancestral in both cases.
(Modified from
Simon et al. 2000
.
)