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Eiichi Kosegawa

Kyushu University

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Comparative Biochemistry and Physiology B | 1990

Comparison of egg and embryo proteins and a trial to detect proteolytic activities in eggs of Bombyx mori

Yasushi Sugimoto; Akira Saito; Eiichi Kosegawa; Katsumi Koga; Hiroshi Fujii

Abstract 1. 1. One- or two-dimensional gel electrophoresis of proteins in the Bombyx eggs at various stages revealed spots corresponding to vitellin heavy chain (VH), vitellin light chain (VL), egg specific proteins (ESPs) and 30 kDa proteins. 2. 2. Isolated embryos showed many other minor components and abundant proteins at 30 kDa. 3. 3. Incubation of crude egg extracts at pH 3 and 4 at 37°C caused a rapid decrease of electrophoresis spots corresponding to VH, VL and ESP. 4. 4. At pH 5, a preferential decrease of ESP spots was seen. 5. 5. Under all acid, neutral and alkaline conditions tested proteins remained intact.

Journal of insect biotechnology and sericology | 2005

Molecular Linkage Map for the Silkworm, Bombyx mori, Based on Restriction Fragment Length Polymorphism of cDNA Clones

Ek Nguu; Keiko Kadono-Okuda; Keisuke Mase; Eiichi Kosegawa; Wajiro Hara

The journal of sericultural science of Japan | 2002

Improvement of linkage analysis in the silkworm, Bombyx mori, by using cDNA clones' RFLP

Wajiro Hara; Eiichi Kosegawa; Keisuke Mase; Keiko Kadono-Okuda

The journal of sericultural science of Japan | 2001

Linkage analysis of EST cDNA clones by using RFLP in the silkworm, Bombyx mori

Wajiro Hara; Eiichi Kosegawa; Keisuke Mase; Sumiharu Nagaoka; Kazuhiro Okano; Keiko Kadono-Okuda

Journal of insect biotechnology and sericology | 2008

Mapping of a Novel Virus Resistant Gene, Nid-1, in the Silkworm, Bombyx mori, Based on the Restriction Fragment Length Polymorphism (RFLP)

Wajiro Hara; Ying Ann; Ryoukitsu Eguchi; Keisuke Mase; Eiichi Kosegawa; Keiko Kadono-Okuda; Kenn-ichi Nagayasu

Journal of insect biotechnology and sericology | 2012

Hatchability associated with artificial parthenogenesis in stocked strains of silkworm, Bombyx mori L.

Eiichi Kosegawa; Toshihiko Misawa; Hajime Kobayashi; Seiji Izumi

The journal of sericultural science of Japan | 2005

Influence of environmental condition in embryonic stage on diapause and hatchability of the multivoltine silkworm, Bombyx mori

K. Shimizu; M. Hirokawa; K. Tatematsu; Eiichi Kosegawa

Journal of insect biotechnology and sericology | 2005

Genetic Analysis of a New Mutation 'Extra-abdominal Legs and Extra Crescents' Belonging to the E pseudoalleles in the Silkworm, Bombyx mori

Masahiko Hirokawa; Ken-ichiro Tatematsu; Eiichi Kosegawa

J. Silk. Sci. Tech. Jpn. | 2004

On the Cocoon Characteristics of Chinese Improved Races Maintained as Genetic Resource

Haruo Kinoshita; Eiichi Kosegawa; Masahiko Hirokawa; Tatematsu Ken-Ichiro; Nagayasu Ken-ichi; Masayo Iizuka; Hisaya Watase

The journal of sericultural science of Japan | 2000

Induction of non-diapause egg by dark and low temperature incubation in local variety of the silkworm, Bombyx mori

Eiichi Kosegawa; G. Vemananda Reddy; Kunimitu Shimizu; Teruo Okajima

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Katsumi Koga

Kyushu University

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Keiko Kadono-Okuda

Nagoya University

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Keisuke Mase

Nihon University

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Wajiro Hara

Kyushu University

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Akira Saito

Kyushu University

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Bungo Sakaguchi

Kyushu University

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Hiroshi Fujii

Kyushu University

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Katsymi Kaga

Kyushu University

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Ken-ichiro Tatematsu

National Agriculture and Food Research Organization

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Masaki Yara

Kyushu University

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