Chromosome triplication found across the tribe Brassiceae
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چکیده
منابع مشابه
Chromosome triplication found across the tribe Brassiceae.
We have used an approximately 8.7-Mb BAC contig of Arabidopsis thaliana Chromosome 4 to trace homeologous chromosome regions in 21 species of the family Brassicaceae. Homeologs of this segment could be identified in all tested species. Painting of pachytene chromosomes of Calepina, Conringia, and Sisymbrium species (2n = 14, 16), traditionally placed in tribe Brassiceae, showed one homeologous ...
متن کاملAncestral chromosomal blocks are triplicated in Brassiceae species with varying chromosome number and genome size.
The paleopolyploid character of genomes of the economically important genus Brassica and closely related species (tribe Brassiceae) is still fairly controversial. Here, we report on the comparative painting analysis of block F of the crucifer Ancestral Karyotype (AK; n = 8), consisting of 24 conserved genomic blocks, in 10 species traditionally treated as members of the tribe Brassiceae. Three ...
متن کاملTriplication of distal chromosome 10q.
We describe a patient with a de novo chromosomal aberration with karyotype 46,XY,10q+, presenting clinical features of partial duplication of distal chromosome 10q. Further studies using microsatellites and FISH showed a triplication of distal chromosome 10q. The rearrangement involved both maternal homologues and the middle chromosomal 10q fragment of the triplication was inverted, similar to ...
متن کاملDiversification and the evolution of dispersal ability in the tribe Brassiceae (Brassicaceae).
BACKGROUND AND AIMS Dispersal and establishment ability can influence evolutionary processes such as geographic isolation, adaptive divergence and extinction probability. Through these population-level dynamics, dispersal ability may also influence macro-evolutionary processes such as species distributions and diversification. This study examined patterns of evolution of dispersal-related fruit...
متن کاملConvergent evolution of a complex fruit structure in the tribe Brassiceae (Brassicaceae).
PREMISE OF STUDY Many angiosperms have fruit morphologies that result in seeds from the same plant having different dispersal capabilities. A prime example is found in the Brassiceae (Brassicaceae), which has many members with segmented or heteroarthrocarpic fruits. Since only 40% of the genera are heteroarthrocarpic, this tribe provides an opportunity to study the evolution of an ecologically ...
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ژورنال
عنوان ژورنال: Genome Research
سال: 2005
ISSN: 1088-9051
DOI: 10.1101/gr.3531105