Ishii, T. and Saito, Y (2012).
Red-orange pigments in epidermal cells and white biood cells in the budding ascidian, Polyandrocarpa misakiensis.
Memoirs of the Fuculty of Education and Human Studies Akita University( (Natural Science), 67, 25-33

Smith, K. F., L. Stefaniak, Y. Saito, C. C. Gemmill, S. C. Cary, and A. E. Fidler (2012)
Increased inter-colony fusion rates are associated with reduced COI haplotype diversity in an invasive colonial ascidian Didemnum vexillum
PLoS one, 7 (1), e30473.

Atsumi, M., and Y. Saito (2011)
Studies on Japanese botryllid ascidians. V. A new species of the genus Botrylloides being very similar to Botrylloides simodensis in morphology.
Zoological Science, 28, 532-542.

Ishii, T., and Y. Saito (2011)
A study on the coelomocytes and histology of the marine bryozoan, Watersipora subovoidea.
Mem. Faculty Edu. and Human Studies Akita Univ. (Natur. Sci.), 66, 19-28

Yim, MJ., M. Hosokawa, Y. Mizushima, H. Yoshida, Y. Saito, and K. Miyashita (2011)
Suppressive Effects of Amarouciaxanthin A on 3T3-L1 Adipocyte Differentiation through Ddown-regulation of PPARγand C/EBPα mRNA Expression.
J. Agric. Food Chem., 59, 1646-1652.

Miyamoto, N., and Y. Saito (2010)
Morphological characterization of the asexual reproduction in the acorn worm Balanoglossus simodensis.
Developmental Growth and Differentiation, 52, 615-627.

Miyamoto, N., Y.Nakajima, H. Wada and Y. Saito (2010)
Development of the nervous system in the acorn worm Balanoglossus simodensis: insights into nervous system evolution.
Evolution and Development, 12, 416–424.

Ikuta, T., N. Miyamoto, Y. Saito, H. Wada, N. Satoh, and H. Saiga (2009)
Ambulacrarian prototypical Hox and ParaHox gene complements of the indirect-developing hemichordate Balanoglossus simodensis
Dev Gene Evol, 219: 383-389

Miyamoto, N. and Y. Saito (2007)
The Morphology and Development of a New Species of Balanoglossus (Hemichordata: Enteropneusta: Ptychoderidae) from Shimoda, Japan.
Zool. Sci., 24: 1278-1285 (2007).

Sunanaga, T., Y. Saito, and K. Kawamura (2006)
Postembryonic epigenesis of Vasa-positive germ cells from aggregated hemoblasts in the colonial ascidian, Botryllus primigenus.
Develop. Growth Differ., 48: 87-100.

Nakaya, F., Y. Saito, and T. Motokawa (2005)
Experimental allometry: effect of size manipulation on metabolic rate of colonial ascidians.
Proc. R. Soc. B., 272(1575): 1963-1969.

Ogawa, M., D. Tanimoto, T. Okamoto, A. Takeuchi, Y. Saito, Z. Jing, A. Takeuchi, and T. Naganuma (2003)
Ester-linked phospholipids fatty acids in marine sediments: Testing the possibility of methane seepage in the Japan Sea.
Aquatic Ecosystem Health & Management, 6: 397-408.

Kurabayashi, A., M. Okuyama, M. Ogawa, A. Takeuchi, Z. Jing, T. Naganuma, and Y. Saito (2003)
Phylogenetic position of a deep-sea ascidian, Megalodicopia hians, inferred from the molecular data.
Zool. Sci., 20: 1243-1247.

Saito, Y., and M. Okuyama (2003)
Studies on Japanese botryllid ascidians. IV. A new species of the genus Botryllus with a unique colony shape, from the vicinity of Shimoda.
Zool. Sci., 20: 1153-1161.

Nakaya, F., Y. Saito, and T. Motokawa (2003)
Switching of metabolic-rate scaling between allometry and isometry in colonial ascidians.
Proc. R. Soc. Lond. B, 270: 1105-1113.

Saito, Y., and N. Nagasawa (2003)
Studies on Japanese botryllid ascidians. III. A new species of the genus Botryllus with a vivid colony color from the vicinity of Shimoda.
Zool. Sci., 20: 765-771.

Saito, Y (2003)
Xenogeneic rejection among three botryllids (compound ascidians)
Zool. Sci., 20: 581-589.

Hirose, E., M. Shirae, and Y. Saito (2003)
Ultrastructures and classification of circulating hemocytes in 9 botryllid ascidians (Chordata: Ascidiacea).
Zool. Sci., 20: 647-656.

Okuyama, M., Y. Saito, M. Ogawa, A. Takeuchi, Z. Jing, T. Naganuma, and E. Hirose (2002)
Morphological studies on the bathyal ascidian, Megalodicopia hians Oka 1918 (Octacnemidae, Phlebobranchia), with remarks on feeding and tunic morphology
Zool. Sci., 19: 1181-1189.

Shirae, M., L. Ballarin, A. Frizzo, Y. Saito, and E. Hirose (2002)
Involvement of quinones and phenoloxidase in the allorejection reaction in a colonial ascidian, Botrylloides simodensis: histochemical and immunohistochemical study
Marine Biology, 141: 659-665.

Okuyama, M., and Y. Saito (2002)
Studies on Japanese botryllid ascidians. II. A new species of the genus Botryllus from the vicinity of Shimoda
Zool. Sci., 19: 809-815.

Hirose, E., M. Shirae, and Y. Saito (2002)
Colony specificity in the xenogeneic combinations among four Botrylloides species (Urochordata, Ascidiacea)
Zool. Sci., 19: 747-753.

Okuyama, M., Y. Saito, and E. Hirose (2002)
Fusion between incompatible colonies of a viviparous ascidian, Botrylloides lentus
Invertebr. Biol., 121: 163-169.

Okuyama, M., and Y. Saito (2001)
Studies on the structure of the brooding organs of two botryllid ascidians, Botryllus delicatus and Botryllus sexiens
Zool. Sci., 18: 397-404.

Okuyama, M., and Y. Saito (2001)
Studies on Japanese botryllid ascidians. I. A new species of the genus Botryllus from the Izu Islands
Zool. Sci., 18: 261-267.

Shirae, M., and Y. Saito (2000)
A comparison of hemocytes and their phenoloxidase activity among botryllid ascidians
Zool. Sci., 17: 881-891.

Shirae, M., E. Hirose, and Y. Saito (1999)
Behavior of hemocytes in the allorejection reaction in two compound ascidians, Botryllus scalaris and Symplegma reptans
Biol. Bull., 197: 188-197.

Cohen, C. S., Y. Saito, and I. L. Weissman (1998)
Evolution of allorecognition in botryllid ascidians inferred from a molecular phylogeny
Evolution, 52: 746-756.

De Tomaso, A. W., Y. Saito, K. J. Ishizuka, K. J. Palmeri, and I. L. Weissman (1998)
Mapping the genome of a model protochordate. I. A low resolution genetic map encompassing the fusion /histocompatibility (Fu/HC) locus of Botryllus schlosseri
Genetics, 149: 277-287.

Ishii, T., Y. Saito, and Y. Taneda (1998)
Regeneration of body fragments in the colonial ascidian Polyandrocarpa misakiensis: Effect of left-right axial polarity on reconstruction of the anteroposterior axis.
Memories of the College of Education Akita University (Natural Science), 53: 55-62.

Ishii, T., Y. Saito, and Y. Taneda (1997)
Stability of axial polarities in the fragments of ascidian during regeneration and chimeric regeneration
Memories of the College of Education Akita University (Natural Science), 51: 17-24

Hirose, E., Y. Saito, and H. Watanabe (1997)
Subcuticular rejection: an advanced mode of the allogeneic rejection in the compound ascidians Botrylloides simodensis and B. fuscus
Biol. Bull., 192: 53-61.

Ishii, T., and Y. Saito (1995)
Colony specificity in the marine bryozoan Dakaria subovoidea.
Zool. Sci., 12, 435-441.

Hirose, E., Y. Saito, and H. Watanabe (1995)
Regeneration of the tunic cuticle in the compound ascidian, Botrylloides simodensis.
Develop. Comp. Immunol., 19, 143-151.

Hirose, E., Y. Saito, and H. Watanabe (1994)
Surgical fusion between incompatible colonies of the compound ascidian, Botrylloides fuscus.
Develop. Comp. Immunol., 18, 287-294.

Hirose, E., T. Ishii, Y. Saito, and Y. Taneda (1994)
Seven types of tunic cells in the colonial ascidian Aplidium yamazii (Polyclinidae, Aplousobranchia):Morphology, classification, and possible functions.
Zool. Sci., 11, 737-743.

Ishii, T., Y. Taneda, and Y. Saito (1994)
Polarity and body pattern in ascidian chimeras formed between normal (situs nomale viscerum) and reversed (situs inversus viscerum) bodies.
J. Exp. Zool., 269, 336-348.

Hirose, E., T. Ishii, Y. Saito, and Y. Taneda (1994)
Phagocytic activity of tunic cells in the colonial ascidian Aplidium yamazii (Polyclinidae, Aplousobranchia).
Zool. Sci., 11, 203-208

Ishii, T., Y. Saito, and Y. Taneda (1993)
Histological differences between the color patterns of two strains of the compound ascidian Polyandrocarpa misakiensis.
Zool. Sci., 10, 977-982.

Rinkevich, B., Y. Saito, and I. L. Weissman (1993)
A colonial invertebrate species that displays a hierarchy of allorecognition responses.
Biol. Bull., 184, 79-86.

Rinkevich, B., M. Shapira, I. L. Weissman, and Y. Saito (1992)
Allogeneic responses between three remote populations of the cosmopolitan ascidian Botryllus schlosseri.
Zool. Sci., 9, 989-994.

Rinkevich, B. and Y. Saito (1992)
Self-nonself recognition in the colonial protochordate Botryllus schlosseri from Mutsu Bay, Japan.
Zool. Sci., 9, 983-988.

Hirose, E. and Y. Saito (1992)
Threadlike bacteria in the tunic of a botryllid ascidian.
Hiyoshi Rev. Natl. Sci. Keio Univ., 12, 108-110.

Hirose, E., T. Nishikawa, Y. Saito, and H. Watanabe (1992)
Minute protrusions of ascidian tunic cuticle; some implications for ascidian phylogeny.
Zool. Sci., 9, 405-412.

Hirose, E., H. Toda, Y. Saito, and H. Watanabe (1992)
Formation of the multiple-layered fertilization envelope in the embryo of Calanus sinicus Brodsky (Copepoda: Calanoida).
J. Crastacean Biol., 12, 186-192.

Hirose, E., Y. Saito, and H. Watanabe (1991)
Tunic cell morphology and classification in botryllid ascidians.
Zool. Sci., 8, 951-958.

Boyd, H., I. L. Weissman, and Y. Saito (1990)
Morphologic and genetic verification that Monterey Botryllus and Woods Hole Botryllus are the same species.
Biol. Bull., 178, 239-250.

Hirose, E., Y. Saito, K. Hashimoto, and H. Watanabe (1990)
Minute protrusions of the cuticle: fine surface structures of the tunic in ascidians.
J. Morph., 204, 67-73.

Hirose, E., Y. Saito, and H. Watanabe (1990)
Allogeneic rejection induced by cut surface contact in the compound ascidian, Botrylloides simodensis.
Invertbr. Reprod. Dev., 17, 159-164.

Hirose, E., Y. Saito, and H. Watanabe (1988)
A new type of the manifestation of colony specificity in the compound ascidian, Botrylloides violaceus Oka.
Biol. Bull., 175, 240-245.

Mukai, H., Y. Saito, and H. Watanabe (1987)
Viviparous development in Botrylloides (Compound ascidians).
J. Morph., 193, 263-276.

Saito, Y. and H. Watanabe (1985)
Studies on Japanese compound styelid ascidians. Ⅳ. Three new species of the genus Botrylloides from the vicinity of Shimoda.
Publ. Seto Mar. Biol. Lab., 30, 227-240.

Saito, Y. and H. Watanabe (1984)
Partial biochemical characterization of humoral factors involved in the nonfusion reaction of a botryllid ascidian, Botrylloides simodensis.
Zool. Sci., 1, 229-235.

Saito, Y. and H. Watanabe (1982)
Colony specificity in the compound ascidian, Botryllus scalaris.
Proc. Japan Acad., 58, Ser. B, 105-108.

Saito, Y., H. Mukai, and H. Watanabe (1981)
Studies on Japanese compound styelid ascidians. Ⅱ. A new species of the genus Botrylloides and redescription of B. violaceus Oka.
Publ. Seto Mar. Biol. Lab., 26, 357-368

Saito, Y., H. Mukai, and H. Watanabe (1981)
Studies on Japanese compound styelid ascidians. Ⅰ. Two new species of Botryllus from the vicinity of Shimoda.
Publ. Seto Mar. Biol. Lab., 26, 347-355

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