Table S1 List of certain centromeric sequences of different plant species. Name class of repeat and size source pAl1 tandem satellite (178 bp) A. thaliana (Martinez-Zapater, et al., 1986) pAa tandem satellite (166-179 bp) A. arenosa/ lyrata/ halleri (Kamm et al., 1995) pAge1 tandem sattelite (169 bp) A. lyrata/ halleri (Kawabe and Nasuda, 2005) pAge2 tandem satelite (178 bp) A. lyrata/ halleri (Kawabe and Nasuda, 2005) 500 bp tandem satellite (500 bp) A. thaliana (Simoens et al., 1988) 160 p tandem satellite (160 bp) A. thaliana (Simoens et al., 1988) 163A non-tandem repeat (0.45 kp) A. thaliana (Thompson et al., 1996) 164A non-tandem repeat (0.9 kp) A. thaliana (Thompson et al., 1996) 278A non-tandem repeats (1.3 kp) A. thaliana (Thompson et al., 1996) 106B retrotransposon related (0.4 kp) A. thaliana (Thompson et al., 1996) pRA5/ pRB tandem satellite (177 bp) Raphanus sativus (Grellet et al., 1986) canrep tandem satellite (172 bp) Sinapis alba (Capesius, 1983) CentC tandem satellite (156 bp) Zea mays (Ananiev et al., 1998) CentO/ RCS2 tandem satellite (155-168 bp) Oryza sativa (Dong et al., 1998) LCS1 tandem satellite (178 bp) Luzula nivea (Haizel et al., 2005) Bd49 tandem repeat (176 bp) B chromosome of Brachyome dichromosomatica (John et al., 1991) Pmel centromeric repeat (370 bp) B-chromosome of Zea mays (Kaszas and Birchler, 1996) CCS1 CCS1 family (260 bp) Brachypodium sylvaticum (Aragon-Alcaide et al., 1996) BCS1 CCS1 family (238 bp) Hordeum vulgare (Aragon-Alcaide et al., 1996) MCS1A CCS1 family (404 bp) Zea mays (Aragon-Alcaide et al., 1996) RCS1 CRM & CCS1 familiy (877 bp) Oryza sativa (Aragon-Alcaide et al., 1996) pSauA9 CRM retrotransposon (745 bp) Sorghum bicolor (Jiang et al., 1996) Spdl CRM retrotransposon (2221 bp) Picea glauca (L'Homme et al., 2000) cerebra CRM retrotransposon (809 bp) Hordeum vulgare (Presting et al., 1998) CRR CRM retrotransposon (4.4 kb) Oryza sativa (Cheng et al., 2002) CRM CRM retrotransposon (7572 bp) Zea mays (Zhong et al., 2002) CRW CRM retrotransposon (4.4-7.9 kb) Triticum baeoticum (Liu et al., 2008) CRS CRM retrotransposon (3.6 kb) Saccharum officinarum (Nagaki and Murata, 2005) Beetle 1 CRM retrotransposon (6690 bp) Beta vulgaris (Weber and Schmidt, 2009) Beetle 2 CRM retrotransposon (6736 bp) Beta vulgaris (Weber and Schmidt, 2009) CRA CRM retrotransposon (4.8-7.8 kb) A. thaliana (Gorinsek et al., 2004) Athila Athila retrotransposon (10.5 kb) A. thaliana (Pelissier et al., 1995) Bilby Ty1/copia retrotransposon (3.4 kb) Secale cereale (Francki, 2001) For further information on centromeric repeats check Mehrotra and Goyal (2014). Referenses Ananiev EV, Phillips RL, Rines HW (1998) Chromosome-specific molecular organization of maize (Zea mays L.) centromeric regions. Proc Natl Acad Sci U S A 95: 13073-13078 Aragon-Alcaide L, Miller T, Schwarzacher T, Reader S, Moore G (1996) A cereal centromeric sequence. Chromosoma 105: 261-268 Capesius I (1983) Sequence of the Cryptic Satellite DNA from the Plant Sinapis-Alba. Biochimica Et Biophysica Acta 739: 276-280 Cheng Z, Dong F, Langdon T, Ouyang S, Buell CR, Gu M, Blattner FR, Jiang J (2002) Functional rice centromeres are marked by a satellite repeat and a centromerespecific retrotransposon. Plant Cell 14: 1691-1704 Dong F, Miller JT, Jackson SA, Wang GL, Ronald PC, Jiang J (1998) Rice (Oryza sativa) centromeric regions consist of complex DNA. Proc Natl Acad Sci U S A 95: 81358140 Francki MG (2001) Identification of Bilby, a diverged centromeric Ty1-copia retrotransposon family from cereal rye (Secale cereale L.). Genome 44: 266-274 Gorinsek B, Gubensek F, Kordis D (2004) Evolutionary genomics of chromoviruses in eukaryotes. Mol Biol Evol 21: 781-798 Grellet F, Delcasso D, Panabieres F, Delseny M (1986) Organization and evolution of a higher plant alphoid-like satellite DNA sequence. J Mol Biol 187: 495-507 Haizel T, Lim YK, Leitch AR, Moore G (2005) Molecular analysis of holocentric centromeres of Luzula species. Cytogenet Genome Res 109: 134-143 Jiang J, Nasuda S, Dong F, Scherrer CW, Woo SS, Wing RA, Gill BS, Ward DC (1996) A conserved repetitive DNA element located in the centromeres of cereal chromosomes. Proc Natl Acad Sci U S A 93: 14210-14213 John UP, Leach CR, Timmis JN (1991) A sequence specific to B chromosomes of Brachycome dichromosomatica. Genome 34: 739-744 Kamm A, Galasso I, Schmidt T, Heslop-Harrison JS (1995) Analysis of a repetitive DNA family from Arabidopsis arenosa and relationships between Arabidopsis species. Plant Mol Biol 27: 853-862 Kaszas E, Birchler JA (1996) Misdivision analysis of centromere structure in maize. EMBO J 15: 5246-5255 Kawabe A, Nasuda S (2005) Structure and genomic organization of centromeric repeats in Arabidopsis species. Mol Genet Genomics 272: 593-602 L'Homme Y, Seguin A, Tremblay FM (2000) Different classes of retrotransposons in coniferous spruce species. Genome 43: 1084-1089 Liu Z, Yue W, Li DY, Wang RRC, Kong XY, Lu K, Wang GX, Dong YS, Jin WW, Zhang XY (2008) Structure and dynamics of retrotransposons at wheat centromeres and pericentromeres. Chromosoma 117: 445-456 Martinez-Zapater, J.M., Estelle, M.A. and Somerville, C.R. (1986) A Highly Repeated DNA-Sequence in Arabidopsis-Thaliana. Mol Gen Genet, 204, 417-423. Mehrotra S, Goyal V (2014) Repetitive sequences in plant nuclear DNA: types, distribution, evolution and function. Genomics Proteomics Bioinformatics 12: 164-171 Nagaki K, Murata M (2005) Characterization of CENH3 and centromere-associated DNA sequences in sugarcane. Chromosome Res 13: 195-203 Pelissier T, Tutois S, Deragon JM, Tourmente S, Genestier S, Picard G (1995) Athila, a new retroelement from Arabidopsis thaliana. Plant Mol Biol 29: 441-452 Presting GG, Malysheva L, Fuchs J, Schubert I (1998) A Ty3/gypsy retrotransposon-like sequence localizes to the centromeric regions of cereal chromosomes. Plant J 16: 721-728 Simoens CR, Gielen J, Van Montagu M, Inze D (1988) Characterization of highly repetitive sequences of Arabidopsis thaliana. Nucleic Acids Res 16: 6753-6766 Thompson HL, Schmidt R, Dean C (1996) Identification and distribution of seven classes of middle-repetitive DNA in the Arabidopsis thaliana genome. Nucleic Acids Res 24: 3017-3022 Weber B, Schmidt T (2009) Nested Ty3-gypsy retrotransposons of a single Beta procumbens centromere contain a putative chromodomain. 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