Genome analyses reveal population structure and a purple stigma color gene candidate in finger millet

文献类型： 外文期刊

第一作者： Devos, Katrien M.

作者： Devos, Katrien M.;Qi, Peng;Bahri, Bochra A.;Gimode, Davis M.;Martinez-Bello, Liliam;Pendergast, Thomas H.;Sidhu, Gurjot S.;Wright, Hallie;Zhao, Jianxin;Devos, Katrien M.;Qi, Peng;Lule, Dagnachew;Martinez-Bello, Liliam;Pendergast, Thomas H.;Saha, Dipnarayan;Sidhu, Gurjot S.;Zhao, Jianxin;Devos, Katrien M.;Qi, Peng;Martinez-Bello, Liliam;Pendergast, Thomas H.;Sidhu, Gurjot S.;Zhao, Jianxin;Bahri, Bochra A.;Gimode, Davis M.;Manthi, Samuel J.;Odeny, Damaris A.;Jenike, Katharine;Schatz, Michael C.;Jenike, Katharine;Schatz, Michael C.;Jenike, Katharine;Schatz, Michael C.;Lule, Dagnachew;Lux, Thomas;Mayer, Klaus F. X.;Plott, Chris;Sreedasyam, Avinash;Grimwood, Jane;Jenkins, Jerry;Lovell, John;Schmutz, Jeremy;Wang, Xuewen;Wang, Hao;Deshpande, Santosh;de Villiers, Santie;de Villiers, Santie;Dida, Mathews M.;Lovell, John;Schmutz, Jeremy;Mayer, Klaus F. X.;Mneney, Emmarold E.;Ojulong, Henry F.;Song, Bo;Tesfaye, Kassahun;Tesfaye, Kassahun;Manthi, Samuel J.;Lule, Dagnachew;Martinez-Bello, Liliam;Saha, Dipnarayan;Deshpande, Santosh;Mneney, Emmarold E.;Song, Bo

作者机构：

期刊名称：NATURE COMMUNICATIONS （ 影响因子：16.6； 五年影响因子：17.0 ）

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年卷期： 2023 年 14 卷 1 期

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收录情况： SCI

摘要： Finger millet is a key food security crop widely grown in eastern Africa, India and Nepal. Long considered a 'poor man's crop', finger millet has regained attention over the past decade for its climate resilience and the nutritional qualities of its grain. To bring finger millet breeding into the 21(st) century, here we present the assembly and annotation of a chromosome-scale reference genome. We show that this similar to 1.3 million years old allotetraploid has a high level of homoeologous gene retention and lacks subgenome dominance. Population structure is mainly driven by the differential presence of large wild segments in the pericentromeric regions of several chromosomes. Trait mapping, followed by variant analysis of gene candidates, reveals that loss of purple coloration of anthers and stigma is associated with loss-of-function mutations in the finger millet orthologs of the maize R1/B1 and Arabidopsis GL3/EGL3 anthocyanin regulatory genes. Proanthocyanidin production in seed is not affected by these gene knockouts.

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