Hexaploid and decaploid races of the parthenogenetic Japanese weevil Catapionus gracilicornis Roelofs
Coleoptera: Curculionidae
1983 年 58 巻 6 号 p. 613-616
詳細
1983 年 58 巻 6 号 p. 613-616
The chromosomes of the Japanese weevil, Catapionus gracilicornis Roelofs have been investigated in Aomori Prefecture. Both hexaploid (6x=63) and decaploid (10x=100) parthenogenetic races were found in Temma. The species is now known to have six parthenogenetic races, 2x, 3x, 4x, 5x, 6x, and 10x, as well as a diploid bisexual race. It was shown that pentaploid forms arose from hexaploid forms as I stated in 1980.
