DEVELOPMENT OF MOLECULAR MARKER FOR IDENTIFICATION OF SEX IN DATE PALM (Phoenix dactylifera L.)
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Date
2020
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CENTRE FOR ADVANCED RESEARCH IN PLANT TISSUE CULTURE DEPARTMENT OF AGRICULTURAL BIOTECHNOLOGY ANAND AGRICULTURAL UNIVERSITY ANAND
Abstract
Date palm (Phoenix dactylifera L.) is a diploid Palmae tree plant with 36
chromosome number (2n=36). Phoenix belongs to the family Arecaceae (Palmae) and
sub-family Coryphoideae. Date palm is cultivated in arid and semi-arid regions
worldwide. It is one of the classical old world fruit along with the olive and fig.
Date palm is dioecious in nature which refers to a species having separate male
and female plants. Sexual phenotype is a particularly majorissue in dioecious plants
that are cultivated for agricultural purposes.A major problem for farmers is to identify
gender at an early stage so that they cannot cultivate large number of productive
female trees with only a minimal number of male trees. At the maturation stage of the
date palm tree, it is easy to identify the male and female flowers but it takes 5- 7
years.