Draft genome sequence of wild Prunus yedoensis reveals massive inter-specific hybridization between sympatric flowering cherries

Table 2 Comparison of repetitive sequences and annotated protein-coding genes in the draft assemblies of four Prunus genomes

Genome	Characteristics	P. yedoensis var. nudiflora	P. avium	P. mume	P. persica
Draft sequences	Size (Mb)	318.7	272.4	237.2	227.2
Repetitive sequences	No. RNA genes^a	2187	729	1541	1243
	DNA TE (Mb)	47.6	26.5	25.5	38.7
	RNA TE (Mb)	79.5	56.4	49.9	62.6
	Simple repeats (Mb)	5.9	5.3	4.2	4.1
	Other repeats (Mb)	5.6	3.9	3.3	2.7
	Total non-redundant bases (Mb)	150.8	103.9	71.1	88.0
Protein-coding genes	Total number	41,294	43,673	31,390	27,864
	Avr. gene size (bp)	2154	2294	2514	2607
	No. exons per gene	4.3	3.6	4.6	5.1
	Avr. exon size (bp)	220	248	249	243
	Avr. intron size (bp)	362	417	380	317
	Avr. gene density (kb/gene)	7.7	6.2	7.6	8.2

Statistics for P. avium, P. mume, and P. persica are based on Shirasawa et al. [8], Zhang et al. [9], and The International Peach Genome Initiative [10], respectively, and repetitive sequences were recalculated using the same criterion used to annotate the P. yedoensis var. nudiflora genome
^aSequences encoding ribosomal RNA, transfer RNA, and microRNA were considered

ISSN: 1474-760X