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Data from: Hairy vetch (Vicia villosa Roth) germplasm contains a cryptic second species (Vicia varia Host)

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posted on 2025-05-19, 18:14 authored by NEAL TILHOUNEAL TILHOU, Heathcliffe Riday

In an effort to improve cover crop performance, we have been breeding improved strains of the cover crop hairy vetch. Based on field data and molecular data, we realized that hairy vetch germplasm contains a genetically isolated subpopulation which can be reasonably considered a distinct species called smooth vetch (Vicia varia Host). These two species are visually quite similar, but have differences in agronomic performance (flowering time and winter survival). To provide a rapid, low cost method to screen individuals and determine their species, we collected single sequence repeat (SSR) marker data on a large number of individuals in the breeding program. Using individuals with known species identities from next-gen sequencing, we built a model to discriminate between the two species of vetch using a linear discriminant model. Properly identifying strains of cover crop vetch can improve agronomic outcomes and breeding progress.

Funding

USDA-ARS: 5090-21000-001-00D

USDA-NIFA: 2018-67013-27570

USDA-NIFA: 2015-51300-24192

History

Data contact name

Tilhou, Neal W

Data contact email

neal.tilhou@usda.gov

Publisher

Ag Data Commons

Temporal Extent Start Date

2017-01-01

Temporal Extent End Date

2024-01-01

Theme

  • Non-geospatial

Geographic location - description

N/A

ISO Topic Category

  • farming

National Agricultural Library Thesaurus terms

microsatellite repeats; Vicia villosa; Vicia varia; germplasm; models; agronomic traits; cultivars

OMB Bureau Code

  • 005:18 - Agricultural Research Service
  • 005:20 - National Institute of Food and Agriculture

OMB Program Code

  • 005:040 - National Research

ARS National Program Number

  • 101

ARIS Log Number

420579

Primary article PubAg Handle

Pending citation

  • No

Public Access Level

  • Public

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