Cytological Study of Family Aeshnidae (Odonata: Anisoptera) From India: A Review

ABSTRACT: Cytological review of 59 aeshnid species and cytogenetic investigations on Anax ephippiger, immaculifrons, indicus, nigrofasciatus nigrolineatus, parthenope, Gynacantha subinterrupta the family Aeshnidae by carbol fuchsin staining C - banding have been under taken. All posses 2n = 27m with X0 XX sex determination except ephippiger 14 + neo XY, resulted 13 simultaneous fusions among autosomes between autosome chromosome. The structure behaviour chromosomes, variation in size m chromosomes X chromosome distribution heterochromatin studied compared species. bands are mostly present at terminal regions autosomal bivalents, while parthenope also possess interstitial sub-terminal bivalents. Moreover, bivalent show C-heterochromatin Out these, complement indicus Lieftinck, 1942 investigated for first time. List cytologically has updated to 60