發(fā)布時(shí)間：2018-04-18 22:12

  本文選題：雷蒙德氏棉 + LBD基因家族��； 參考：《分子植物育種》2017年11期

【摘要】：家族轉(zhuǎn)錄因子是后基因組時(shí)代的研究熱點(diǎn)。植物中的家族轉(zhuǎn)錄因子參與調(diào)控了許多重要的生物學(xué)過程,包括形態(tài)建成、信號轉(zhuǎn)導(dǎo)、環(huán)境應(yīng)激反應(yīng)。植物特有的(lateral organ boundaries domain,LBD)/ASL(ASYMMETRIC LEAVES2-LIKE)家族轉(zhuǎn)錄因子包含保守的類似鋅指結(jié)構(gòu)CX2CX6CX3C基序,在調(diào)控?cái)M南芥、水稻、玉米等模式植物生長發(fā)育過程中起到至關(guān)重要的作用。然而,對于棉花LBD基因的功能目前我們還知之甚少。本研究從雷蒙德氏棉基因組中鑒定出66個(gè)LBD基因,不均勻的分布在13條染色體上。這些基因可分為ClassⅠ和ClassⅡ兩大類,細(xì)分為Ⅰa、Ⅰb、Ⅰc、Ⅰd、Ⅱa和Ⅱb等6個(gè)亞類。該家族基因結(jié)構(gòu)簡單,外顯子數(shù)目不超過3個(gè)。從雷蒙德氏棉LBD家族成員中共找出15段保守基序,并對(lateral organ boundaries,LOB)結(jié)構(gòu)域的保守性進(jìn)行了分析�；虮磉_(dá)模式分析揭示出雷蒙德氏棉LBD基因家族的表達(dá)具有一定時(shí)空特異性。本研究為今后雷蒙德氏棉LBD基因功能的驗(yàn)證奠定了基礎(chǔ)。
[Abstract]:Family transcription factor is a hot topic in the post-genome era.Family transcription factors are involved in many important biological processes, including morphogenesis, signal transduction, and environmental stress response.The transcriptional factors of the organ / ASLMETRIC LEAVES2-LIKE family, which are endemic to plants, contain conserved CX2CX6CX3C motifs similar to zinc finger structures, and play an important role in regulating the growth and development of Arabidopsis, rice and maize.However, little is known about the function of the LBD gene in cotton.66 LBD genes were identified from Raymond's cotton genome and distributed unevenly on 13 chromosomes.These genes can be subdivided into six subgroups of Class 鈪，

本文編號：1770297