Suk‐Ha Lee

A single recessive gene, rxp, on linkage group (LG) D2 controls bacterial leaf-pustule resistance in soybean. We identified two homoeologous contigs (GmA and GmA′) composed of five bacterial artificial chromosomes (BACs) during the selection of BAC clones around Rxp region. With the recombinant inbred line population from the cross of Pureunkong and Jinpumkong 2, single-nucleotide polymorphism and simple sequence repeat marker genotyping were able to locate GmA′ on LG A1. On the basis of information in the Soybean Breeders Toolbox and our results, parts of LG A1 and LG D2 share duplicated regions. Alignment and annotation revealed that many homoeologous regions contained kinases and proteins related to signal transduction pathway. Interestingly, inserted sequences from GmA and GmA′ had homology with transposase and integrase. Estimation of evolutionary events revealed that speciation of soybean from Medicago and the recent divergence of two soybean homoeologous regions occurred at 60 and 12 million years ago, respectively. Distribution of synonymous substitution patterns, Ks, yielded a first secondary peak (mode Ks = 0.10–0.15) followed by two smaller bulges were displayed between soybean homologous regions. Thus, diploidized paleopolyploidy of soybean genome was again supported by our study.

Soybean mosaic virus

Homology

Indel

10.1093/dnares/dsn001

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Citations (34)

Phomopsis (Diaporthe) Species as the Cause of Soybean Seed Decay in Korea

Journal of Phytopathology (2012)

Suli Sun Moon Young Kim Tanapon Chaisan Yin‐Won Lee Kyujung Van

Abstract Soybeans are an important crop known to harbour a complex of D iaporthe and P homopsis species. This complex has been reported to be involved in several soybean diseases, including P homopsis seed decay. In this study, two species of D iaporthe / P homopsis fungi from soybean plants were identified by morphological and molecular characterizations. Koch's postulates were confirmed by pathogenicity tests on hypocotyls of soybean seedlings. P homopsis longicolla was found to be the most common and virulent pathogen to soybeans in K orea. P homopsis sp., which was considered as a new soybean pathogen, might have been introduced from other plants given that similar strains of P homopsis sp. have infected fruit trees in C hina, J apan and P ortugal and vegetable plants in the U nited States .

Phomopsis

Fungal pathogen

10.1111/jph.12034

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Citations (16)

The Mungbean Genome

Compendium of plant genomes (2020)

Ramakrishnan M. Nair Roland Schafleitner Suk‐Ha Lee

10.1007/978-3-030-20008-4

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Citations (38)

Genetic diversity and sequence variation of the Waxy gene in foxtail millet [Setaria italica (L.) P. Beauv]