Introgression of perennial growth habit from Lophopyrum elongatum into wheat

Abbasi, Juliya; Xu, Jiale; Dehghani, Hamid; Luo, Ming‐Cheng; Deal, Karin R.; McGuire, Patrick E.; Dvořák, Jan

doi:10.1007/s00122-020-03616-x

Cited by 4 publications

(6 citation statements)

References 37 publications

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“…More effort is needed to identify genes that control the perennial and annual development in Triticeae with the goal of changing their expression and altering the balance of the annual and perennial gene systems. Some progress has been made in the effort to identify genes and QTLs that promote perennial development in caespitose (Lammer et al, 2004; Abbasi et al, 2020) and rhizomatous (Kaur et al, 2008; Yun et al, 2014) perennial wheatgrasses. Work with the AgCS amphiploid and previously produced aneuploids derived from it suggested that the short arm of wheatgrass chromosome 4E from L. elongatum contributed to the postsexual cycle regrowth that characterizes perenniality in the caespitose wheatgrasses (Lammer et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

“…Work with the AgCS amphiploid and previously produced aneuploids derived from it suggested that the short arm of wheatgrass chromosome 4E from L. elongatum contributed to the postsexual cycle regrowth that characterizes perenniality in the caespitose wheatgrasses (Lammer et al, 2004). More recent work with AgCS, these aneuploids, and nine introgression lines derived from a wheat‐ L. elongatum introgression population (Xu et al, 2020), implicated a gene (designated Pscr1 ) mapped into a short, 31‐ to 36‐Mb distal region in chromosome arm 4ES (Abbasi et al, 2020). However, the full regulation of caespitose perenniality is complex, this same study also implicates regions on other wheatgrass chromosomes besides 4E that increase postsexual cycle regrowth.…”

Section: Discussionmentioning

confidence: 99%

“…The main limitation of current forms of perennial wheat is inadequate persistence over seasons, which leads to a decline in grain yields over time. Stand persistence is better when the entire wheatgrass genome is present rather than single chromosomes (Larkin et al, 2014) probably reflecting the fact that the distinction between annual growth habit and perennial growth habit has a complex genetic basis (Abbasi et al, 2020). Larkin et al (Larkin et al, 2014) found perennial wheat having the entire durum wheat ( Triticum turgidum ssp.…”

Section: Introductionmentioning

confidence: 99%

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Perennial growth and salinity tolerance in wheat × wheatgrass amphiploids varying in the ratio of wheat to wheatgrass genomes

et al. 2020

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Perennial growth and salinity tolerance in wheat × wheatgrass amphiploids varying in the ratio of wheat to wheatgrass genomes

et al. 2020

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“…), the loss of rhizome production has been mapped to different mutations in RHZ2 and RHZ3 , again suggesting parallel evolution of this trait ( Hu et al., 2003 ). In contrast, introgression of the short arm of chromosome four from perennial Thinopyrum elongatum to its close bread wheat relative results in regrowth from tillers ( Lammer et al., 2004 ), and this has been mapped to variation at POST SEXUAL CYCLE REGROWTH 1 ( PSCR1 ) ( Abbasi et al., 2020 ). PSCR1 is the likely orthologue of TEOSINTE BRANCHED 1 ( TB1 ) that together with GRASSY TILLERS 1 ( GT1 ) suppresses tiller outgrowth in maize ( Doebley et al., 1995 ; Whipple et al., 2011 ; Wills et al., 2013 ; Dong et al., 2019 ; Abbasi et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Convergent evolution of the annual life history syndrome from perennial ancestors

et al. 2023

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Despite most angiosperms being perennial, once-flowering annuals have evolved multiple times independently, making life history traits among the most labile trait syndromes in flowering plants. Much research has focused on discerning the adaptive forces driving the evolution of annual species, and in pinpointing traits that distinguish them from perennials. By contrast, little is known about how ‘annual traits’ evolve, and whether the same traits and genes have evolved in parallel to affect independent origins of the annual syndrome. Here, we review what is known about the distribution of annuals in both phylogenetic and environmental space and assess the evidence for parallel evolution of annuality through similar physiological, developmental, and/or genetic mechanisms. We then use temperate grasses as a case study for modeling the evolution of annuality and suggest future directions for understanding annual-perennial transitions in other groups of plants. Understanding how convergent life history traits evolve can help predict species responses to climate change and allows transfer of knowledge between model and agriculturally important species.

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“…Perennial crops are thought to have great potential for truly sustainable production systems (Glover et al 2010). The perennial habit has been transferred into annual wheat by introducing alien chromosomes from related perennial species (Lammer 2004;Abbasi et al 2020). However, no widely used perennial cultivars were produced following these attempts (Dehaan et al 2020).…”

Section: Introductionmentioning

confidence: 99%

The Kengyilia hirsuta karyotype polymorphisms as revealed by FISH with tandem repeats and single-gene probes

Tao¹,

Liu

Dou

2021

CCG

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Kengyilia hirsuta (Keng, 1959) J. L. Yang, C. Yen et B. R. Baum, 1992, a perennial hexaploidy species, is a wild relative species to wheat with great potential for wheat improvement and domestication. The genome structure and cross-species homoeology of K. hirsuta chromosomes with wheat were assayed using 14 single-gene probes covering all seven homoeologous groups, and four repetitive sequence probes 45S rDNA, 5S rDNA, pAs1, and (AAG)10 by FISH. Each chromosome of K. hirsuta was well characterized by homoeological determination and repeats distribution patterns. The synteny of chromosomes was strongly conserved in the St genome, whereas synteny of the Y and P genomes was more distorted. The collinearity of 1Y, 2Y, 3Y and 7Y might be interrupted in the Y genome. A new 5S rDNA site on 2Y might be translocated from 1Y. The short arm of 3Y might involve translocated segments from 7Y. The 7 Y was identified as involving a pericentric inversion. A reciprocal translocation between 2P and 4P, and tentative structural aberrations in the subtelomeric region of 1PL and 4PL, were observed in the P genome. Chromosome polymorphisms, which were mostly characterized by repeats amplification and deletion, varied between chromosomes, genomes, and different populations. However, two translocations involving a P genome segmental in 3YL and a non-Robertsonial reciprocal translocation between 4Y and 3P were identified in two independent populations. Moreover, the proportion of heterozygous karyotypes reached almost 35% in all materials, and almost 80% in the specific population. These results provide new insights into the genome organization of K. hirsuta and will facilitate genome dissection and germplasm utilization of this species.

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Introgression of perennial growth habit from Lophopyrum elongatum into wheat

Cited by 4 publications

References 37 publications

Perennial growth and salinity tolerance in wheat × wheatgrass amphiploids varying in the ratio of wheat to wheatgrass genomes

Perennial growth and salinity tolerance in wheat × wheatgrass amphiploids varying in the ratio of wheat to wheatgrass genomes

Convergent evolution of the annual life history syndrome from perennial ancestors

The Kengyilia hirsuta karyotype polymorphisms as revealed by FISH with tandem repeats and single-gene probes

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