Parental Genome Imbalance Causes Post-Zygotic Seed Lethality and Deregulates Imprinting in Rice

Rice

Table 2 Deregulation of imprinting in interploidy crosses

Gene ID	Bias^a	Exp^a	Nip2n × TH4n	TH4n × Nip2n	Function
01 g10080	mat	g	bi	mat	Expressed protein
02 g55560	mat	g	no-exp	mat	Protein phosphatase 2C
05 g26040	mat	en	bi	mat	Pumilio RNA binding protein
05 g34310	mat	en	no-exp	mat	No apical meristem protein
05 g40790	mat	en	mat	mat	CCR4-NOT transcription factor
06 g33640	mat	en	no-exp	mat	CAPIP1
07 g27359	mat	en	mat	mat	Expressed protein
07 g34620	mat	g	no-exp	mat	Expressed protein
07 g42390	mat	en	mat	mat	Intron derived transcripts
08 g04290 (OsFIE1)	mat	en	mat	mat	PRC2 member
09 g03500	mat	en	mat	bi	ZOS9-01-C2H2 zinc finger
09 g34880	mat	en	mat	mat	bZIP domain protein
11 g27470	mat	en	mat	bi	Hypothetical protein
07 g17460	pat	en	pat	pat	OsFBL36
10 g04890	pat	en	bi	pat	Expressed protein
12 g08780	pat	en	no-exp	pat	YUCCA like protein

^aImprinting and expression status in Luo et al’s (2011) data set (bias > 0.9), and imprinting is confirmed using Nip2n and H2n reciprocal crosses (Additional file 2: Figure S2); exp, expression; mat, maternally expressed; pat, paternally expressed; bi, biallelic; en, endosperm-specific; g, non-tissue specific; H2n, the 2n progenitor of TH4n; See Figure S2 for Sanger sequencing results