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Genomic characterisation of (Valls & C.E. Simpson, 2005) (Leguminosae): multiple origin of species with x = 9.

作者信息

Celeste Silvestri María, Ortiz Alejandra Marcela, Robledo Germán Ariel, Valls José Francisco Montenegro, Lavia Graciela Inés

机构信息

Instituto de Botánica del Nordeste (CONICET-UNNE, Fac. Cs. Agrarias), Sargento Cabral 2131, C.C. 209, 3400 Corrientes, Argentina.

Facultad de Ciencias Exactas y Naturales y Agrimensura, UNNE, Av. Libertad 5460, 3400 Corrientes, Argentina.

出版信息

Comp Cytogenet. 2017 Jan 9;11(1):29-43. doi: 10.3897/CompCytogen.v11i1.10339. eCollection 2017.

DOI:10.3897/CompCytogen.v11i1.10339
PMID:28919947
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5599696/
Abstract

The genus Linnaeus, 1753 comprises four species with = 9, three belong to the section Arachis: (Krapov. W.C. Greg. & Valls, 1994), (Krapov. W.C. Greg. & Valls, 1994) and (Krapov. W.C. Greg. & Valls, 1994) and only one belongs to the section Erectoides: (Valls & C.E. Simpson, 2005). Recently, the = 9 species of section Arachis have been assigned to G genome, the latest described so far. The genomic relationship of with these species is controversial. In the present work, we carried out a karyotypic characterisation of to evaluate its genomic structure and analyse the origin of all = 9 species. showed a karyotype formula of 14m+4st, one pair of A chromosomes, satellited chromosomes type 8, one pair of 45S rDNA sites in the SAT chromosomes, one pair of 5S rDNA sites and pericentromeric C-DAPI+ bands in all chromosomes. Karyotype structure indicates that does not share the same genome type with the other three = 9 species and neither with the remaining Erectoides species. Taking into account the geographic distribution, morphological and cytogenetic features, the origin of species with = 9 of the genus cannot be unique; instead, they originated at least twice in the evolutionary history of the genus.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15b2/5599696/e977fd67c6d6/comparative_cytogenetics-11-029-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15b2/5599696/568163372c26/comparative_cytogenetics-11-029-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15b2/5599696/349adfbe3181/comparative_cytogenetics-11-029-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15b2/5599696/add6809ef685/comparative_cytogenetics-11-029-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15b2/5599696/e977fd67c6d6/comparative_cytogenetics-11-029-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15b2/5599696/568163372c26/comparative_cytogenetics-11-029-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15b2/5599696/349adfbe3181/comparative_cytogenetics-11-029-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15b2/5599696/add6809ef685/comparative_cytogenetics-11-029-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15b2/5599696/e977fd67c6d6/comparative_cytogenetics-11-029-g004.jpg

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本文引用的文献

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Centromeres Off the Hook: Massive Changes in Centromere Size and Structure Following Duplication of CenH3 Gene in Fabeae Species.着丝粒摆脱困境：豆科物种中CenH3基因复制后着丝粒大小和结构的巨大变化
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Physical mapping of the 5S and 18S-25S rRNA genes by FISH as evidence that Arachis duranensis and A. ipaensis are the wild diploid progenitors of A. hypogaea (Leguminosae).
通过荧光原位杂交对5S和18S - 25S rRNA基因进行物理图谱分析，证明了野生二倍体花生（豆科）Arachis duranensis和A. ipaensis是栽培种花生A. hypogaea的祖先。
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Phylogenetic relationships in genus Arachis based on ITS and 5.8S rDNA sequences.基于 ITS 和 5.8S rDNA 序列的花生属系统发育关系。
BMC Plant Biol. 2010 Nov 19;10:255. doi: 10.1186/1471-2229-10-255.
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Species relationships among the wild B genome of Arachis species (section Arachis) based on FISH mapping of rDNA loci and heterochromatin detection: a new proposal for genome arrangement.基于 rDNA 基因座的 FISH 作图和异染色质检测对花生属（Arachis 节）野生 B 基因组种间关系的研究：基因组排列的新建议。
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Species relations among wild Arachis species with the A genome as revealed by FISH mapping of rDNA loci and heterochromatin detection.通过rDNA位点的荧光原位杂交图谱分析和异染色质检测揭示的具有A基因组的野生花生属物种之间的物种关系。
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