Flower development, pollen fertility and sex expression analyses of three sexual phenotypes of Coccinia grandis

BMC Plant Biology

Table 1 Numerical data on somatic chromosome complements of C. grandis (male, female and gynomonoecious (GyM) plants)

Chromosome numbers	Chromosome size (μm)* (Mean ± SD)			F%			Position of centromere
	Male	Female	GyM	Male	Female	GyM	Male	Female	GyM
1	1.92 ± 0.07	2.01 ± 0.03	1.92 ± 0.06	50	50	50	m	m	m
2	1.92 ± 0.06	1.92 ± 0.06	1.92 ± 0.07	45	45	48	nm	nm	nm
3	1.76 ± 0.03	1.84 ± 0.06	1.82 ± 0.04	50	50	50	m	m	m
4	1.76 ± 0.03	1.76 ± 0.03	1.76 ± 0.06	45	47	45	nm	nm	nm
5	1.62 ± 0.07	1.62 ± 0.03	1.65 ± 0.03	33	33	33	sm	sm	sm
6	1.62 ± 0.03	1.62 ± 0.03	1.65 ± 0.03	46	46	46	nm	nm	nm
7	1.54 ± 0.09	1.54 ± 0.07	1.54 ± 0.07	43	43	43	nm	nm	nm
8	1.54 ± 0.03	1.54 ± 0.07	1.54 ± 0.09	46	47	47	nm	nm	nm
9	1.40 ± 0.02	1.54 ± 0.07	1.43 ± 0.05	44	47	47	nm	nm	nm
10	1.22 ± 0.09	1.22 ± 0.05	1.23 ± 0.03	44	46	46	nm	nm	nm
11	1.22 ± 0.01	1.22 ± 0.05	1.23 ± 0.03	45	45	46	nm	nm	nm
12	1.10 ± 0.06	1.10 ± 0.06	1.10 ± 0.06	44	46	47	nm	nm	nm
Y¹	4.60 ± 0.07	-	-	48	-	-	nm	-	-

*Mean of 5 metaphase plates. GyM: gynomonoecious, m: metacentric, nm: nearly metacentric, sm: submetacentric. The karyotype of male and female plants was compared with the gynomonoecious (GyM) chromosomes. Y¹: Single Y chromosome present in male sex.

ISSN: 1471-2229