Chromosome C-banding of the teosinte Zea nicaraguensis and comparison to other Zea species

Ellneskog‐Staam, Pernilla; Loáisiga, Carlos Henry; Merker, Arnulf

doi:10.1111/j.2007.0018-0661.01989.x

Cited by 11 publications

(15 citation statements)

References 10 publications

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“…Z. nicaraguensis , another wild teosinte, more distantly related to cultivated maize, has larger chromosomes with terminal knobs, while cultivated maize and Z. mays L. ssp. parviglumis mostly have subterminal knobs [30]. Similar chromosomal distribution patterns for cultivated maize and Z. mays L. ssp.…”

Section: Discussionmentioning

confidence: 58%

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Comparative Analysis of Genome-Wide Chromosomal Histone Modification Patterns in Maize Cultivars and Their Wild Relatives

Yan

Wang

et al. 2014

PLoS ONE

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Recent advances demonstrate that epigenome changes can also cause phenotypic diversity and can be heritable across generations, indicating that they may play an important role in evolutionary processes. In this study, we analyzed the chromosomal distribution of several histone modifications in five elite maize cultivars (B73, Mo17, Chang7-2, Zheng58, ZD958) and their two wild relatives (Zea mays L. ssp. parviglumis and Zea nicaraguensis) using a three-dimensional (3D) epigenome karyotyping approach by combining immunostaining and 3D reconstruction with deconvolution techniques. The distribution of these histone modifications along chromosomes demonstrated that the histone modification patterns are conserved at the chromosomal level and have not changed significantly following domestication. The comparison of histone modification patterns between metaphase chromosomes and interphase nuclei showed that some of the histone modifications were retained as the cell progressed from interphase into metaphase, although remodelling existed. This study will increase comprehension of the function of epigenetic modifications in the structure and evolution of the maize genome.

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Section: Discussionmentioning

confidence: 58%

“…mays both belong to Z. mays [29], while Z. nicaraguensis is a different species and shares a distant relationship with Z. mays L. ssp. Mays [30]. We selected one of the chromatin marks to compare the histone modification distribution patterns between cultivated maize and its wild relatives.…”

Section: Resultsmentioning

confidence: 99%

Comparative Analysis of Genome-Wide Chromosomal Histone Modification Patterns in Maize Cultivars and Their Wild Relatives

Yan

Wang

et al. 2014

PLoS ONE

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“…The closest relative to Nicaraguan teosinte, Z. nicaraguensis , is probably Z. luxurians of southeastern Guatemala [5]. Z. nicaraguensis and Z. luxurians show close morphological resemblance, and also display considerable differences in developmental behaviour, supporting a taxonomic segregation [8]. Nicaraguan teosinte has much longer and more abundant tassel branches, a larger number of spikelets per branch, and longer, more visibly transversely rugose outer glumers, as well as a habitat different from its Guatemalan counterpart [5].…”

Section: Introductionmentioning

confidence: 81%

“…Iltis and Benz [5] considered Z. nicaraguensis as a new species based on differences in ecology and tassel and plant morphology. The chromosome number of Z. nicaraguensis is 2n = 20, and the C-banding pattern shows that Z. nicaraguensis is very similar to Z. luxurians and more similar to Z. luxurians than to Z. diploperennis and cultivated maize [8]. Nevertheless, the genetic relationship of Z. nicaraguensis in Zea species should be further investigated systematically.…”

Section: Introductionmentioning

confidence: 96%

RAPD and Internal Transcribed Spacer Sequence Analyses Reveal Zea nicaraguensis as a Section Luxuriantes Species Close to Zea luxurians

Wang

Zheng

et al. 2011

PLoS ONE

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Genetic relationship of a newly discovered teosinte from Nicaragua, Zea nicaraguensis with waterlogging tolerance, was determined based on randomly amplified polymorphic DNA (RAPD) markers and the internal transcribed spacer (ITS) sequences of nuclear ribosomal DNA using 14 accessions from Zea species. RAPD analysis showed that a total of 5,303 fragments were produced by 136 random decamer primers, of which 84.86% bands were polymorphic. RAPD-based UPGMA analysis demonstrated that the genus Zea can be divided into section Luxuriantes including Zea diploperennis, Zea luxurians, Zea perennis and Zea nicaraguensis, and section Zea including Zea mays ssp. mexicana, Zea mays ssp. parviglumis, Zea mays ssp. huehuetenangensis and Zea mays ssp. mays. ITS sequence analysis showed the lengths of the entire ITS region of the 14 taxa in Zea varied from 597 to 605 bp. The average GC content was 67.8%. In addition to the insertion/deletions, 78 variable sites were recorded in the total ITS region with 47 in ITS1, 5 in 5.8S, and 26 in ITS2. Sequences of these taxa were analyzed with neighbor-joining (NJ) and maximum parsimony (MP) methods to construct the phylogenetic trees, selecting Tripsacum dactyloides L. as the outgroup. The phylogenetic relationships of Zea species inferred from the ITS sequences are highly concordant with the RAPD evidence that resolved two major subgenus clades. Both RAPD and ITS sequence analyses indicate that Zea nicaraguensis is more closely related to Zea luxurians than the other teosintes and cultivated maize, which should be regarded as a section Luxuriantes species.

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“…This cereal belongs to the Andropogoneae tribe, Panicoideae subfamily and Poaceae family [4]. Five species are included in the genus Zea and largely has 2n = 20 chromosomes (except Zea perennis, 2n = 40) [5].…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity of Maize Accessions (<i>Zea mays</i> L.) Cultivated from Benin Using Microsatellites Markers

Salami¹,

Sika²,

Padonou³

et al. 2016

AJMB

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Maize (Zea mays L.) is the major cereal cultivated in Benin and it is important to know its genetic diversity to improve the yield. The genetic markers of important traits are evaluated in order to improve the maize inbred lines. The aim of this study was to evaluate the genetic diversity of Benin's maize accessions by SSR marker. Thus, one hundred eighty seven maize accessions from three areas (South, Center and North) were analyzed using three SSR markers. A total of 227 polymorphic bands were produced and showed high genetic diversity (Shannon index = 0.51). The polymorphic information content (PIC) values for the SSR loci ranged from 0.58 to 0.81, with an average of 0.71. Genetic distance-based UPGMA dendrogram showed a genetic differentiation between accessions and they were grouped into four clusters in each area. This work provides necessary information that can be used not only to improve the maize production and conservation but also to better manage genetic species resources in Benin.

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Chromosome C-banding of the teosinte Zea nicaraguensis and comparison to other Zea species

Cited by 11 publications

References 10 publications

Comparative Analysis of Genome-Wide Chromosomal Histone Modification Patterns in Maize Cultivars and Their Wild Relatives

Comparative Analysis of Genome-Wide Chromosomal Histone Modification Patterns in Maize Cultivars and Their Wild Relatives

RAPD and Internal Transcribed Spacer Sequence Analyses Reveal Zea nicaraguensis as a Section Luxuriantes Species Close to Zea luxurians

Genetic Diversity of Maize Accessions (<i>Zea mays</i> L.) Cultivated from Benin Using Microsatellites Markers

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Chromosome C-banding of the teosinte Zea nicaraguensis and comparison to other Zea species

Cited by 11 publications

References 10 publications

Comparative Analysis of Genome-Wide Chromosomal Histone Modification Patterns in Maize Cultivars and Their Wild Relatives

Comparative Analysis of Genome-Wide Chromosomal Histone Modification Patterns in Maize Cultivars and Their Wild Relatives

RAPD and Internal Transcribed Spacer Sequence Analyses Reveal Zea nicaraguensis as a Section Luxuriantes Species Close to Zea luxurians

Genetic Diversity of Maize Accessions (&lt;i&gt;Zea mays&lt;/i&gt; L.) Cultivated from Benin Using Microsatellites Markers

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Product

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Genetic Diversity of Maize Accessions (<i>Zea mays</i> L.) Cultivated from Benin Using Microsatellites Markers