Large-fragment deletion encompasses the R2R3 MYB transcription factor, PavMYB10.1, causes yellow fruits in sweet cherry (Prunus avium L.)

文献类型： 外文期刊

第一作者： Liu, Congli

作者： Liu, Congli;Qi, Xiliang;Song, Lulu;Chen, Lei;Dong, Yuanxin;Li, Ming;Wang, Zhiqiang;Liu, Congli;Guo, Wenwu;Pan, Fengrong;Zheng, Wei;Li, Yutao;Zhao, Baixia

作者机构：

关键词： Sweet cherry; BSA-seq; Large-fragment deletion; Yellow fruit skin coloration

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：4.3； 五年影响因子：4.5 ）

ISSN： 0304-4238

年卷期： 2023 年 309 卷

页码：

收录情况： SCI

摘要： Due to different accumulation and distribution patterns of anthocyanin, the fruits of sweet cherry (Prunus avium L.) display considerable color variation, ranging from yellow, blush to dark red. Yellow-skinned sweet cherries are characterized by the absence of anthocyanin in the fruits, providing a good candidate for research on yellow coloration in sweet cherry fruits. In this study, we identified the underlying genetic mechanism by integrating BSA-seq, RNA-seq, whole-genome sequencing and marker-trait association analyses. A similar to 90 kb deletion on chromosome 3 containing PavMYB10.1 TF was found to be an nonfunctional allele, PavMYB10.1(Del), responsible for yellow fruit skin. Other two functional alleles of PavMYB10.1, PavMYB10.1a and PavMYB10.1b, result in red or blush skin color. Furthermore, evaluation of variant-trait association in F1 populations and a set of advanced breeding selections revealed strong co-segregation of the fruit skin color phenotypes and the EFC marker which combined by primers specific to PavMYB10.1a/b and PavMYB10.1(Del) separately. These results provide novel insights into yellow fruit skin coloration in sweet cherry and represent a useful tool for the pre-selection of fruit color in molecular-assisted breeding programs.

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