ArticleG3 (Bethesda, Md.)2015
Evidence for a Common Origin of Homomorphic and Heteromorphic Sex Chromosomes in Distinct Spinacia Species.
Article in G3 (Bethesda, Md.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
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Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Plant sex chromosomes defy evolutionary models of expanding recombination suppression and genetic degeneration.Nature plants · 2021Pooled it
- Article
- Chromosome-scale assembly with a phased sex-determining region resolves features of early Z and W chromosome differentiation in a wild octoploid strawberry.G3 (Bethesda, Md.) · 2022Article
- Genomic analyses provide insights into spinach domestication and the genetic basis of agronomic traits.Nature communications · 2021Article
- Heterogeneous Histories of Recombination Suppression on Stickleback Sex Chromosomes.Molecular biology and evolution · 2021Article
- A spinach genome assembly with remarkable completeness, and its use for rapid identification of candidate genes for agronomic traits.DNA research : an international journal for rapid publication of reports on genes and genomes · 2021Article
- Fine mapping and molecular marker development of the Fs gene controlling fruit spines in spinach (Spinacia oleracea L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Article
- Cloning and physical localization of male-biased repetitive DNA sequences inComparative cytogenetics · 2021Article
- Genetic Diversity, Structure, and Selective Sweeps inFrontiers in genetics · 2021Article
- Genome-Wide Analysis of Transposable Elements and Satellite DNAs inFrontiers in plant science · 2020Article
- Extreme heterogeneity in sex chromosome differentiation and dosage compensation in livebearers.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Molecular evidence for recent divergence of X- and Y-linked gene pairs in Spinacia oleracea L.PloS one · 2019Article
- Genetic Diversity on the Sex Chromosomes.Genome biology and evolution · 2018Review
- Draft genome of spinach and transcriptome diversity of 120 Spinacia accessions.Nature communications · 2017Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The dioecious genus Spinacia is thought to include two wild relatives (S. turkestanica Ilj. and S. tetrandra Stev.) of cultivated spinach (S. oleracea L.). In this study, nuclear and chloroplast sequences from 21 accessions of Spinacia germplasm and six spinach cultivars or lines were subjected to phylogenetic analysis to define the relationships among the three species. Maximum-likelihood sequence analysis suggested that the Spinacia plant samples could be classified into two monophyletic groups (Group 1 and Group 2): Group 1 consisted of all accessions, cultivars, and lines of S. oleracea L. and S. turkestanica Ilj. and two of five S. tetrandra Stev. accessions, whereas Group 2 was composed of the three remaining S. tetrandra Stev. accessions. By using flow cytometry, we detected a distinct difference in nuclear genome size between the groups. Group 2 also was characterized by a sexual dimorphism in inflorescence structure, which was not observed in Group 1. Interspecific crosses between the groups produced hybrids with drastically reduced pollen fertility and showed that the male is the heterogametic sex (XY) in Group 2, as is the case in S. oleracea L. (Group 1). Cytogenetic and DNA marker analyses suggested that Group 1 and Group 2 have homomorphic and heteromorphic sex chromosome pairs (XY), respectively, and that the sex chromosome pairs of the two groups evolved from a common ancestral pair. Our data suggest that the Spinacia genus may serve as a good model for investigation of evolutionary mechanisms underlying the emergence of heteromorphic sex chromosome pairs from ancestral homomorphic pairs.
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