Wednesday, July 30, 2008

Horizontal gene transfer in eukaryotic evolution

作者: Patrick J. Keeling and Jeffrey D. Palmer
出處: Nature Reviews Genetics 2008 9: 605-618
簡介:
Horizontal gene transfer(HGT)在真核生物基因組的演化中扮演著重要的角色,不過人們一向將焦點放在比較了解也更為普遍的原核生物間的基因轉移。最近許多研究顯示原核與真核生物的基因轉移,有重大功能上的意義。

Monday, July 7, 2008

[Paper] Evolution of plant miRNA

Author: Michael J. Axtell and John L. Bowman
Title: Evolution of plant microRNAs and their targets
Sources: Trends in Plant Science (2008) 13(7): 343-349. Journal link here
Note:
The authors review the current progress on plant microRNAs and the hypothesis on the evolution. There are 21 highly expressed microRNAs are known to angiosperms and there are several newly identified weakly expressed ones as well.

Wednesday, July 2, 2008

[Special Issue] Reviews in Plant Cytogenetics

最近一期的Cytogenetic and Genome Research以植物染色體的組成、行為及演化為主題, 討論目前相關領域最新的進展。 這篇special issue的內容如下 (我已下載部份pdf檔存於Atropos), 有興趣者可前往參考

Chromosome Organization
An overview of plant chromosome structure
Chromosome landmarks as tools to study the genome of Arabidopsis thaliana
Physical organisation of simple sequence repeats (SSRs) in Triticeae: structural, functional and evolutionary implications
Molecular cytogenetics of forest trees

New Technologies
Plant engineered minichromosomes and artificial chromosome platforms
Radiation hybrid (RH) and HAPPY mapping in plants

Special Chromosomes
A cytogenetic view of sex chromosome evolution in plants
The use of repetitive DNA in cytogenetic studies of plant sex chromosomes
Plant sex chromosomes: molecular structure and function
Chromosomes with a life of their own

Meiosis
Meiosis in plants: ten years of gene discovery
Meiotic genes and proteins in cereals
ASY1 coordinates early events in the plant meiotic recombination pathway
The cytogenetics of homologous chromosome pairing in meiosis in plants
Nuclear architecture and chromosome dynamics in the search of the pairing partner in meiosis in plants
Chromosome 'speed dating' during meiosis of polyploid Brassica hybrids and haploids

Chromosome Evolution
Chromosome numbers in plant cytotaxonomy: concepts and implications
Repetitive DNA and chromosomal rearrangements: speciation-related events in plant genomes

Cytogenetics and Plant Breeding
Pathways to doubled haploidy: chromosome doubling during androgenesis
Cytogenetics of Festulolium (Festuca × Lolium hybrids)
The use of cytogenetic tools for studies in the crop-to-wild gene transfer scenario