Publications by authors named "Jianke Dong"
Article Synopsis
- - This study presents the high-quality genome of a wild potato species native to Brazil, Uruguay, and Argentina, highlighting its disease resistance and stress tolerance traits, with two main haplotypes revealing substantial chromosome sizes and gene counts.
- - The analysis shows significant positive selection on genes related to disease resistance and environmental adaptation, contributing to the impressive genetic diversity of this wild potato.
- - Researchers successfully mapped potato freezing tolerance genes using a hybrid population and a combination of BSA-seq and QTL mapping, pinpointing a specific region on Chr07, which will aid in understanding cold tolerance in potatoes.
The Ra extreme resistance against potato virus A was mapped to the upper of chromosome 4 in tetraploid potato. Potato virus A (PVA) is one of the major viruses affecting potato worldwide and can cause serious disease symptoms and yield losses. Previously, we determined that potato cultivar Barbara harbors Ry (genotype: Ryryryry) and Ra (genotype: Rararara) that each independently confer extreme resistance to PVA.
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- The study explores the process of 2n egg formation in the wild potato species S. malmeanum, which is crucial for improving gene flow into cultivated potato varieties.
- It utilizes advanced techniques like fluorescence in situ hybridization and genomic sequencing to confirm the formation of these 2n gametes and assesses their genetic inheritance patterns.
- The findings highlight the potential of wild potatoes like S. malmeanum in enhancing traits for agriculture, overcoming reproductive barriers, and providing insight into optimizing wild germplasm for better potato cultivation.
A multi-parental population is an innovative tool for mapping large numbers of loci and genetic modifications, particularly where they have been used for breeding and pre-breeding in crops. Frost injury is an environmental stress factor that greatly affects the growth, development, production efficiency, and geographical distribution of crops. No reported study has focused on genetic mapping and molecular marker development using diallel populations of potatoes.
View Article and Find Full Text PDFTuber shape is one of the most important traits for potato breeding. Since poor or irregular shape increases the difficulty of handling and processing, researching the inheritance of potato tuber shape for potato breeding is highly important. To efficiently identify QTL for tuber shape, a diploid potato population (PM7) was generated by self-pollinated M6 ().
View Article and Find Full Text PDFClarification of the genome composition of the potato + eggplant somatic hybrids cooperated with transcriptome analysis efficiently identified the eggplant gene SmPGH1 that contributes to bacterial wilt resistance. The cultivated potato is susceptible and lacks resistance to bacterial wilt (BW), a soil-borne disease caused by Ralstonia solanacearum. It also has interspecies incompatibility within Solanaceae plants.
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