- The
Ryukyu spiny rat (Tokudaia
osimensis) is a
species of
rodent in the
family Muridae.
Endemic to
Amami Ōshima
island in the
Amami Islands of the Ryukyu...
-
without the Y
Chromosome in two ****anese
rodents Tokudaia osimensis osimensis and
Tokudaia osimensis spp".
Mammalian Genome. 12 (1): 17–21. doi:10.1007/s003350010228...
- also lack a Y chromosome.
These include the
Amami spiny rat (Tokudaia
osimensis) and the
Tokunoshima spiny rat (Tokudaia tokunoshimensis) and
Sorex araneus...
- The
karyotype has an odd
diploid number, 2n = 45. Like its
relative T.
osimensis, it is one of the few
mammals that lack a Y
chromosome and SRY gene. The...
- vole,
Ellobius tancrei, and the ****anese
spinous country rats
Tokudaia osimensis and
Tokudaia tokunoshimensis, have lost the Y
chromosome and SRY entirely...
-
Their ****-determination
method remains unknown.
Zaisan mole vole
Tokudaia osimensis Tokudaia tokunoshimensis Kryštufek, B.; Shenbrot, G. (2016). "Ellobius...
- witherbyi)
Tokudaia (Ryukyu
spiny rats) Muennink's
spiny rat (T. muenninki)
Ryukyu spiny rat (T.
osimensis)
Tokunoshima spiny rat (T. tokunoshimensis)...
- witherbyi)
Tokudaia (Ryukyu
spiny rats) Muennink's
spiny rat (T. muenninki)
Ryukyu spiny rat (T.
osimensis)
Tokunoshima spiny rat (T. tokunoshimensis)...
- (Emery, 1895) †A.
oligocenica Wheeler, 1915 A.
opposita (Say, 1836) A.
osimensis Teranishi, 1940 A.
ovaticeps (Emery, 1898) A.
pallescens Walker, 1871...
- witherbyi)
Tokudaia (Ryukyu
spiny rats) Muennink's
spiny rat (T. muenninki)
Ryukyu spiny rat (T.
osimensis)
Tokunoshima spiny rat (T. tokunoshimensis)...
