芸薹属植物自交不亲和分子机制的研究进展

综述了近年来在芸薹属植物自交不亲和信号转导途径中相关基因的研究进展,同时对其自交不亲和信号转导途径中的分子机制作一阐述。 Abstract:In recent years certain progess in Brassica signaling was reviewed about some self-compatibility-related genes such as SRK,SLG,SCR,ARC1,THL1 and THL2.Meanwhile,molecular mechanism in Brassica self-compatibility signaling was reviewed,including its action models.     

利用S倍点多态性快速测定甘蓝自交不亲和性及其S等位基因系

根据Ⅰ类和Ⅱ类ＳＬＧ基因两端序列合成了特异引物,对西南农业大学和ＨＲＩ（Ｈｏｒｔｉｃｕｌｔｕｒｅ Ｒｅｓｅａｒｃｈ Ｉｎｔｅｒｎａｔｉｏｎａｌ,Ｗｅｌｌｅｓｂｏｕｒｎｅ）提供了不同亲和指数的甘蓝９Ｂｒａｓｓｉｃａ ｏｌｅｒａｃｅａ Ｌ．）材料进行了ＰＣＲ分析。结果表明：具Ⅰ类ＳＬＧ基因的材料是强自交不亲和系,也包括弱自交不亲和系。因此,Ⅱ类ＳＬＧ基因的存在可作为区别甘蓝交亲和系和自交不亲和系的分子     

竹荪的研究与利用

本文对竹荪生态生物学特性、营养成分与功效及其开发利用现状与前景作了阐述。     

中国兰花资源分子标记鉴定研究进展

系统阐述了RAPD、SSR、RFLP、AFLP和其它几类分子标记在中国兰花种质资源鉴定及遗传多样性研究中的应用进展。同时指出,应用分子标记研究兰属植物的遗传多样性对兰属的科学分类及新品种选育等具有指导意义,并提出展望。     

利用S位点多态性快速测定甘蓝自交不亲和性及其S等位基因系

Specific primers were designed according to the sequences of class Ⅰ and class Ⅱ SLG genes. The PCR products using these primers amplified from the cabbage　(Brassica oleracea L.) gDNAs of Southwest China Agricultural University (SCAU) and Horticulture Research International (HRI), Wellesbourne, showed that those with class Ⅰ SLG genes were strong self-incompatibility (SI) lines and those with class Ⅱ were included both strong and weak SI lines. Thus the whole length of DNA fragment of class Ⅱ SLG gene may be the molecular marker for distinguishing SI lines from SC lines. Furthermore, RFLP analysis of the class 　Ⅱ SLG genes from various S-alleles of cabbage was conducted by using 6 restriction endonucleases which recognize 4 bp DNA sequence and the results showed that the S-alleles from HRI as well as the weak SI lines from SCAU presented obvious different RFLP profiles which could be used for distinguishing S-alleles of cabbage.     

植物孢子体自交不亲和信号转导功能分子研究进展

孢子体自交不亲和(SSI)是许多植物采取的一种抵制近亲繁殖的重要措施,受S位点复等位基因控制。近年来,参与其信号转导的许多功能分子及它们的编码基因被分离并得到了充分研究：当自花授粉时,SPlI／SCR与SRK特异识别,造成后的Ser／Thr激酶的磷酸化,引发了一系列由SLG、ARC1及水孔蛋白等因子参与的SSI信号转导途径,最终产生自交不亲和的结果。