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Diverse transcriptional patterns of homoeologous recombinant transcripts in triploid fish(Cyprinidae)

Science China Life Sciences 2021年

作者： LiRen XueyinZhang JiamingLi XiaojingYan XinGao JialinCui ChenchenTang shaojunliu StateKeyLaboratoryofDevelopmentalBiologyofFreshwaterFish HunanNormalUniversity CollegeofLifeSciences HunanNormalUniversity

Homoeologous recombination（HR）, the exchange of homoeologous chromosomes, contributes to subgenome adaptation to diverse environments by producing various phenotypes. However, the potential relevance of HR and innate immunity is rarely described in triploid cyprinid fish species. In our study, two allotriploid genotypes（R2C and RC2）, whose innate immunity was stronger than their inbred parents（Carassius auratus red var. and Cyprinus carpio L.）, were obtained from backcrossing between male allotetraploids of C. auratus red var.×C. carpio L. and females of their two inbred parents, respectively. The work detected140 HRs shared between the two triploids at the genomic level. Further, transcriptions of 54 homoeologous recombinant genes（HRGs） in R2C and 65 HRGs in RC2were detected using both Illumina and PacBio data. Finally, by comparing expressed recombinant reads to total expressed reads in each of the genes, a range of 0.1%–10% was observed in most of the 99–193 HRGs,of which six recombinant genes were classified as “response to stimulus”. These results not only provide a novel way to predict HRs in allopolyploids based on cross prediction at both genomic and transcriptional levels, but also insight into the potential relationship between HRs related to innate immunity and adaptation of the triploids and allotetraploids.

关键词： homoeologous recombination recombinant transcripts triploid innate immunity

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A NEW KIND OF POTENTIAL SENSOR OF CHEMICALLY MODIFIED ELECTRODE

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Chinese Science Bulletin 1984年第8期29卷 1033-1037页

作者：董绍俊刘柏峰毕军 Changchun Institute of Applied Chemistry Academia Sinica

Chemically modified electrode is a newly developed research area in electrochemistry in the past few years. There exist many excellent research programs, in particular the electrocatalytic photoeffect, electrosynthesis, and electrochromic phenomena at modified electrode that will be intensively scrutinized applications, some of which will translate into far-future technology. Selective analysis is a hardly broached pregnant application area. Electrochemically polymerized phenol and aniline modified electrode having potential sensor effect have been published recently.

关键词： hardly aniline phenol SENSOR translate pregnant monomer hydroxyethyl polymerization itself

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