From the T2T cotton genome to a tripartite regulatory module governing embryo folding  

作　　者：Xiaoya Chen 

机构地区：[1]National Key Laboratory of Plant Molecular Genetics,CAS Center for Excellence in Molecular Plant Sciences/lnstitute of Plant Physiology and Ecology,University of CAS,Chinese Academy of Sciences,Shanghai 200032,China

出　　处：《Molecular Plant》2024年第10期1494-1495,共2页分子植物（英文版）

基　　金：supported by the National Key R&D Program of China(2022YFF1001400 to X.C.);the National Natural Science Foundation of China(32388201 to X.C.).

摘　　要：Human civilization relies heavily on the nutritional resources provided either directly or indirectly by angiosperm seeds and their associated structures.Angiosperm embryos with storage cotyledons can be classified into four distinct foliate axile types(Martin,1946).Cotton,as an economically vital crop that belongs to a monophyletic clade including Gossypium and 8 other genera with over 100 species(Huang et al.,2021),is distinguished by its complex folded foliate axile 3-type embryos(Figure 1A).These embryos are among the most fully developed and intricate of any angiosperm,with the complex folding significantly increasing the surface area,which,in turn,enhances the storage capacity for nutritional resources(Fryxell,1978).This complex structure is closely tied to the evolution of seed germination and dormancy by improving the plant's ability to adapt to environmental conditions.However,the morphogenetic mechanisms and developmental process of the complex embryonic cotyledons remain unexplored.Since the publication of the Gossypium raimondii genome(one of the two ancestral genomes made of the allotetraploid cotton)in 2012(Paterson et al.,2012;Wang et al.,2012),substantial progress has been achieved in cotton genomics,fueling functional genomic research and providing insights into the resolution of complex traits(Huang et al.,2021;Li et al.,2023;Lin et al.,2023).

关 键 词：FOLDING FIGURE cotton 

分 类 号：Q94[生物学—植物学]