Pathogenomics Insights into Phytophthora capsici and Phytophthora tropicalis -Sibling Species Causing Black Pepper Foot Rot: Genomic Architecture, Metabolic Pathways, and Effector Diversity.

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Tác giả: Jeevalatha A, Kumar A, Santhosh J Eapen, Mohammed Javed, Anandaraj M, Bhaskar Reddy

Ngôn ngữ: eng

Ký hiệu phân loại: 651.504 Special topics of records management

Thông tin xuất bản: Netherlands : Gene , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 464939

Foot rot disease in black pepper, caused by Phytophthora species, is a major threat to cultivation. Along with the well-known Phytophthora capsici, a newly identified species, Phytophthora tropicalis, has also been implicated. Comparative genome analysis of P. capsici 05-06 from Kerala (80.51 Mb, 626 scaffolds) and P. tropicalis 98-93 from Karnataka (73.54 Mb, 302 scaffolds) revealed similar GC content (∼50.5%) and gene counts (19,639 and 17,716, respectively). Genomic ANI analysis clustered them with P. capsici LT1534-B, suggesting a species complex. Both species contain transposable elements (19.35% and 21.31%), indicating adaptive evolution. Pathway mapping highlights roles in carbohydrate metabolism, carbohydrate-active enzymes (CAZymes: 575 and 566), energy production, effector biosynthesis, and molecular signaling. The presence of unique protein families and shared orthologous genes underscores their pathogenic potential. These findings enhance understanding of their evolution and pathogenicity, aiding in the development of targeted management strategies for black pepper foot rot.
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