A gene-rich linkage map in the dioecious species Actinidia chinensis (kiwifruit) reveals putative X/Y sex-determining chromosomes

Table 2 Allelic information content of microsatellite markers in the A. chinensis intraspecific mapping population.

Marker Type	Result from	Parents	Alleles	Segregation	Phenotypes
Fully informative	loci heterozygous	ab × cd	ac ad bc bd	1:1:1:1	4
	in both parents	ab × c0	ac a0 bc b0	1:1:1:1	4
		a0 × bc	ab ac b0 c0	1:1:1:1	4
		ab × ac	aa ac ba bc	1:1:1:1	4
		a0 × b0	ab a0 b0 00	1:1:1:1	4
Partly informative	loci heterozygous	ab × a0	ab 2a b0	1:2:1	3
	in both parents	a0 × ab	ab 2a b0	1:2:1	3
		ab × ab	aa 2ab bb	1:2:1	3
		a0 × a0	3a 00	3:1	2
Female informative	female heterozygous	ab × cc	ac bc	1:1	2
	male homozygous	ab × 00	a0 b0	1:1	2
		a0 × bb	ab b0	1:1	2
		ab × aa	aa ab	1:1	2
		a0 × 00	a0 00	1:1	2
Male informative	male heterozygous	aa × bc	ab ac	1:1	2
	female homozygous	00 × ab	a0 b0	1:1	2
		aa × b0	ab a0	1:1	2
		aa × ab	aa ab	1:1	2
		00 × a0	a0 00	1:1	2

The female alleles were identified first and carried the designation ab if both alleles were visible, the male alleles were cd. Where homology, or null alleles restricted naming the female alleles, then the male alleles were identified in alphabetical order. When null alleles were present, they were informative in various combinations of alleles as shown, but did reduce the information content of the makers overall.

ISSN: 1471-2164