Open AccessKARYOTYPES OF CEREAL APHIDS IN SOUTH AUSTRALIA WITH SPECIAL REFERENCE TO RHOPALOSIPHUM MAIDIS (FITCH) (HEMIPTERA: APHIDIDAE)
Author(s) -
Barro P. J. De
Publication year - 1992
Publication title -
australian journal of entomology
Language(s) - English
Resource type - Journals
eISSN - 1440-6055
pISSN - 1326-6756
DOI - 10.1111/j.1440-6055.1992.tb00518.x
Subject(s) - rhopalosiphum maidis , biology , aphididae , homoptera , hemiptera , aphid , rhopalosiphum padi , karyotype , sorghum , host (biology) , sitobion avenae , botany , agronomy , pest analysis , chromosome , ecology , genetics , gene
Rhopalosiphum maidis in South Australia has a karyotype of 2n = 8, regardless of host plant. This contrasts with world‐wide records where other karyotypes (2n = 9, 10) are common on host plants other than maize and sorghum. R. maidis (2n = 9) has been recorded consistently in eastern Australia on hosts other than maize. Other cereal aphids in South Australia, namely, R. padi (L.), Metopolophium dirhodum (Walker) and Sitobion nr fragariae , have karyotypes as previously recorded in the literature.