Cytology of some malayan species of mangifera

Abstract

This is a report on the somatic chromosomes and meiotic division in Mangifera foetida and M. caesia, two Malayan species of Section II of the genus. Observations show that the species have the same chromosome number n=20 and 2n=40, as has been found previously in three other species of Mangifera, indicating thereby a stability in the chromosome numbers in the genus, as in the case of Citrus and other genera. Meiotic division in M. foetida is regular, with regular pairing and anaphasic disjunction showing 20 bivalents in metaphase. Similarity in chromosome number and pollen morphology in different species of the genus suggests close compatibility during hybridization and stock-scion relationship, if other species are used as stock for the common mango, Mangifera indica. © 1957, Japan Mendel Society, International Society of Cytology. All rights reserved.