Table 1. Responsible factors regulating the meiosis-specific rapid chromosome movements in various model systems.

	Fission yeast	Budding yeast	Worm	Mouse
SUN domain protein (inner nucler membrane)	Sad1	Mps3	SUN-1	SUN1
KASH domain protein (outer nuclear membrane)	Kms1, 2	Csm4	ZYG-12	KASH5
Chromosomal scaffold	Bqt1/2	Ndj1	HIM8, ZIM-1,2,3	TERB1
Motor	Dynein, Dynactin, Kinesin	Actin motors	Dynein	Dynein, Dynactin

Cytoplasmic motor forces, generated by MT-dependent motors (fission yeast, worm, and mouse) or actin motors (budding yeast), are transmitted to the specific chromosomal parts, generally telomeres (fission yeast, budding yeast, and mouse), or, exceptionally, pairing centers (worm), through the associations between meiosis-specific chromosomal scaffold proteins and transmembrane LINC complex, composed of SUN domain protein, locating in the inner nuclear membrane, and KASH domain protein, locating in the outer nuclear membrane.