Allotetraploidy of Zoysia species with 2n=40 based on a RFLP genetic map

Yaneshita, Makoto; Kaneko, Shinya; Sasakuma, Tetsuo

doi:10.1007/s001220051131

Cited by 40 publications

(45 citation statements)

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“…The map distance in the present study is longer than all zoysiagrass genetic maps reported previously (Ebina et al 1999;Yaneshita et al 1999;Cai et al 2004Cai et al , 2005Li et al 2009), it was even longer than that b Fig. 1 New linkage map of zoysiagrass by adding the 100 RFLP, CISP and PLUG markers showed homology to rice genome.…”

Section: New Linkage Map Based On Ssr Rflp Cisp and Plug Markerscontrasting

confidence: 50%

Synteny between Zoysia japonica Steud. and Oryza sativa L. based on RFLP, CISP and PLUG markers

Yuyama³

et al. 2014

Genet Resour Crop Evol

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In order to study the synteny between Zoysia japonica and Oryza sativa, we added three types of markers including Restriction fragment length polymorphism, Conserved intron scanning primers and PCR-based landmark unique gene in our previous high-density SSR-based linkage map. A total of 100 loci showed homology to the rice genome were merged into our previously constructed SSR-based linkage map of zoysiagrass. The new map was longer than all zoysiagrass genetic maps reported previously, and contains the number of linkage groups 20, which is equal to the haploid number of chromosomes of zoysiagrass. The new mapped 100 homologous loci were mapped to 19 linkage groups (LGs) except of LG 20, of them, the LGs 2, 8 and 13 of zoysiagrass showed colinearity with chromosomes 3, 6 and 1 of rice respectively, and otherLGs of zoysiagrass contained variable numbers of markers that showed homology with the rice genome. These results suggested a syntenic relationship between zoysiagrass and rice. The improved genetic linkage map and the new markers developed in this study will serve as reference genetic linkage maps for zoysiagrass species and will be useful for mapping QTLs associated with various traits, and for improving zoysiagrass breeding programs.

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Section: New Linkage Map Based On Ssr Rflp Cisp and Plug Markerscontrasting

confidence: 50%

Synteny between Zoysia japonica Steud. and Oryza sativa L. based on RFLP, CISP and PLUG markers

Yuyama³

et al. 2014

Genet Resour Crop Evol

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“…The total map length in the present study is longer than all zoysiagrass genetic maps reported previously: the 1,187 cM genetic linkage map based on 540 SSR and AFLP markers (Cai et al 2005), two AFLP-based linkage maps (932.5 and 1,320 cM; Cai et al 2004 andEbina et al 1999, respectively), and an RFLP-based genetic map of 1,506 cM (Yaneshita et al 1999). …”

Section: Map Constructionmentioning

confidence: 70%

“…Genomic constitution of Zoysia species Yaneshita et al (1999) has reported that 5 pairs of LGs shared a series of duplicated loci with approximately the same order in several Zoysia species using an interspecific mapping population, and concluded that Zoysia species with 2n = 40 seem to represent a segmental allotetraploid derived from progenitors with a basic chromosome number of ten (x = 10). This was supported by Gould and Soberstorm (Gould and Soberstrom 1974) who reported that the chromosome number of Z. matrella collected in Ceylon was 2n = 20 from a study of the ''first meiotic division of microsporocytes.…”

Section: Synteny Between Zoysiagrass and Ricementioning

confidence: 98%

“…Several genetic maps have been published. Two molecular linkage maps were initially constructed from interspecific hybrids of Z. japonica and Z. matrella (Ebina et al 1999;Yaneshita et al 1999) on the basis of amplified-fragment length polymorphism (AFLP) and restriction-fragment length polymorphism (RFLP) markers. Cai et al (2004) also reported an AFLP-based high-density linkage map for Z. japonica.…”

Section: Introductionmentioning

confidence: 99%

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Construction of a high-density SSR marker-based linkage map of zoysiagrass (Zoysia japonica Steud.)

Yuyama²,

Hirata³

et al. 2009

Euphytica

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A consensus genetic linkage map with 447 SSR markers was constructed for zoysiagrass (Zoysia japonica Steud.), using 86 F 1 individuals from the cross 'Muroran 2' 9 'Tawarayama Kita 1'. The consensus map identified 22 linkage groups and had a total length of 2,009.9 cM, with an average map density of 4.8 cM. When compared with a previous AFLP-SSR linkage map, the SSR markers from each linkage group mapped to similar positions in both maps. Eight pairs of linkage groups from the AFLP-SSR map were joined into eight new groups in the current map. This zoysiagrass consensus map contained 35 SSR markers exhibiting high homology with rice genomic sequences from known chromosomal locations. This allowed synteny to be identified between Zoysiagrass linkage groups 2, 3, 9, 19 and rice chromosomes 3, 12, 2, 7 respectively. These results provide important comparative genomics information and the new map is now available for quantitative trait locus analysis, marker-assisted selection and breeding for important traits in zoysiagrass.

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“…Predominantly wind-pollinated outcrossing species have on an average less than 10 % of the genetic variation between populations [11]. This high level of genetic differentiation also suggests that gene flow among species is low (Nm = 0.332), though no chromosomal barrier of interspecific crossing [8,32].…”

Section: Discussionmentioning

confidence: 98%

DNA Polymorphism and Assessments of Genetic Relationships in genus Zoysia Based on Simple Sequence Repeat Markers

Huh¹

2015

Journal of Life Science

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The genetic variability of four species of the genus Zoysia collected from South Korea was analyzed using an inter-simple sequence repeat (ISSR) marker system. Polymerase chain reactions (PCR) with eight ISSR primers generated 86 amplicons, 76 (87.1%) of which were polymorphisms. The polymorphism information content (PIC) value of the ISSR marker system was 0.848. The percentage of polymorphic loci (Pp) ranged from 41.2% to 44.7%. Nei's gene diversity (H) ranged from 0.149 to 0.186, with an average overall value of 0.170. The mean of Shannon's information index (I) value was 0.250. Total genetic diversity values (HT) varied between 0.356 (ISSR-1) and 0.418 (ISSR-16), for an average overall polymorphic loci of 0.345. Interlocus variation in within-species genetic diversity (HS) was low (0.170). On a per-locus basis, the proportion of total genetic variation due to differences among species (GST) was 0.601. This indicated that about 60.1% of the total variation was among species. Thus, about 39.9 of genetic variation was within species. The estimate of gene flow, based on GST, was very low among species of the genus Zoysia (Nm = 0.332). The phylogenic tree showed three distinct groups: Z. macrostachya and Z. tenuifolia clades and other species were formed the separated clusters. In conclusion, the ISSR assay was useful for detecting genetic variation in the genus Zoysia, and its discriminatory power was comparable to that of other genotyping tools.

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Allotetraploidy of Zoysia species with 2n=40 based on a RFLP genetic map

Cited by 40 publications

References 0 publications

Synteny between Zoysia japonica Steud. and Oryza sativa L. based on RFLP, CISP and PLUG markers

Synteny between Zoysia japonica Steud. and Oryza sativa L. based on RFLP, CISP and PLUG markers

Construction of a high-density SSR marker-based linkage map of zoysiagrass (Zoysia japonica Steud.)

DNA Polymorphism and Assessments of Genetic Relationships in genus Zoysia Based on Simple Sequence Repeat Markers

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