Phylogenetic analysis of the maternal genome of tetraploid StStYY Elymus (Triticeae: Poaceae) species and the monogenomic Triticeae based on rps16 sequence data

Hodge, Curtis D.; Wang, Huan; Sun, Genlou

doi:10.1016/j.plantsci.2010.03.002

Cited by 17 publications

(25 citation statements)

References 32 publications

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“…Our weakly supported Aegilops-Triticum clade (Figures 4 and 5) was consistent with previous studies which have found that Aegilops and Triticum form a paraphyletic clade with Amblyopyrum, and Taeniatherum caput medusae genera (Escobar et al, 2011;Hodge et al, 2010;Mason-Gamer et al, 2002;Petersen et al, 2006Petersen et al, , 2011Petersen & Seberg, 2008). These studies have also indicated that Heteranthelium and Secale tend to be included in this clade, which was not observed in our tree (Figures 4 and 5).…”

Section: 3-triticeae Phylogenysupporting

confidence: 92%

“…As was predicted, the Pseudoroegneria species grouped with the Elymus species (Figures 4 and 5). This grouping of Elymus and Pseudoroegneria has been reported in many cpDNA studies, and indicates that Pseudoroegneria may be the maternal genome donor to Elymus (Hodge et al, 2010;Liu et al, 2006;Mason-Gamer et al, 2002;McMillan & Sun, 2004;Petersen et al, 2011;Redinbaugh et al, 2000;Sun, 2007;Xu & Ban, 2004). We can use cpDNA to predict the maternal genome donor of polyploidy species as only the haplome from the maternal plant species in the polyploid species is observed in cpDNA trees.…”

Section: 4-pseudoroegneria Phylogeny Within the Triticeaesupporting

confidence: 72%

“…Past studies have found that Eremopyrum, Australopyrum, and Agropyron have tended to group together in cpDNA gene trees, indicating the close relationships between these genera (Escobar et al, 2011;Hodge et al, 2010;Mason-Gamer et al, 2002;Petersen et al, 2006Petersen et al, , 2011Petersen & Seberg, 1997. Our analyses did not result in this pattern as Eremopyrum, Australopyrum, and Agropyron each formed their own monophyletic clade (Figure 4 and 5).…”

Section: 3-triticeae Phylogenymentioning

confidence: 39%

“…There have been many studies on the chloroplast DNA of Elymus, with a consistent finding that the St genome of Pseudoroegneria is the maternal donor of the St haplome in North American, Middle Eastern and Asian Elymus species (Hodge et al, 2010;Liu et al, 2006;Mason-Gamer, Orme & Anderson, 2002;McMillan & Sun, 2004;Sun & Salomon, 2009). …”

Section: 3-relationship Of Elymus and Pseudoroegneriamentioning

confidence: 98%

“…They contain many important cereal grasses such as barley (Hordeum vulgare), wheat (Triticum aestivum), and rye (Secale cereale), as well as many forage grasses such as Elymus and Pseudoroegneria (Hodge, Wang & Sun, 2010;Petersen & Seberg, 1997).…”

Section: 1-triticeaementioning

confidence: 99%

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Phylogenetic analysis of the genus Pseudoroegneria and the Triticeae tribe using the rbcL gene

Gamache

Sun

2015

Biochemical Systematics and Ecology

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Phylogenetic Analysis of the Genus Pseudoroegneria and the Triticeae Tribe Using the rbcl Gene By Jacques GamachePseudoroegneria are diploid perennial grasses of the Triticeae tribe. The haplome "St" of Pseudoroegneria is shared with several important polyploid species such as Elymus, Kengyilia and, Elytrigia. Due to frequent hybridizations and complex genetic mechanisms, the relationships within Pseudoroegneria, and within the Triticeae, have been heavily disputed. Using the chloroplast rbcL gene I estimated the nucleotide diversity of 8 Pseudoroegneria species, and additionally examined the phylogenetic relationships within Pseudoroegneria and of Pseudoroegneria within the larger context of Triticeae. The estimates of nucleotide diversity indicated that P. tauri and P. spicata species had the highest diversity, while P. gracillima had the lowest. The phylogenetic analysis of Pseudoroegneria placed all P. spicata sequences into a clade separate from the other Pseudoroegneria, while the relationship of the other Pseudoroegneria species could not be determined. Due to the groupings of Pseudoroegneria with the polyploid Elymus, our results strongly support Pseudoroegneria as the maternal genome donor to Elymus. There was also weak support for the idea that P. spicata may be the maternal genome donor to the StH Elymus species.

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