作者: Sameer Khanal , Changsoo Kim , Susan A. Auckland , Lisa K. Rainville , Jeevan Adhikari
DOI: 10.1007/S00122-017-2854-Z
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摘要: We report SSR-enriched genetic maps of bermudagrass that: (1) reveal partial residual polysomic inheritance in the tetraploid species, and (2) provide insights into evolution chloridoid genomes. This study describes linkage two Cynodon dactylon (T89) transvaalensis (T574), that integrate heterologous microsatellite markers from sugarcane frameworks built with single-dose restriction fragments (SDRFs). A maximum likelihood approach was used to construct separate parental a population 110 F1 progeny cross between parents. The T89 map is based on 291 loci 34 cosegregating groups (CGs), an average marker spacing 12.5 cM. T574 125 14 CGs, 10.7 cM. Six one CG(s) deviated disomic inheritance. Furthermore, segregation data phase analysis revealed T89, suggesting common undergoing diploidization following whole genome duplication (WGD). Twenty-six CGs were coalesced 9 homo(eo)logous (LGs), while 12 assembled LGs, both putatively representing basic chromosome complement (x = 9) species. Eight remain unassigned. composition ancestral chromosomes inferred by aligning homologs, comparisons sorghum rice sequences 108 91 significant blast hits, respectively. Two nested fusions (NCFs) shared other chloridoids (i.e., zoysiagrass finger millet) at least three independent translocation events evident during number reduction polyploid ancestor Poaceae Cynodon.