Influence of Geographical Orchard Location on the Microbiome from the Progeny of a Pecan Controlled Cross

Author:

Cervantes Kimberly1,Velasco-Cruz Ciro2,Grauke L.3ORCID,Wang Xinwang3ORCID,Conner Patrick4,Wells Lenny4,Bock Clive5ORCID,Pisani Cristina5,Randall Jennifer12

Affiliation:

1. Molecular Biology and Interdisciplinary Life Sciences, New Mexico State University, Las Cruces, NM 88003, USA

2. Entomology, Plant Pathology, and Weed Science, New Mexico State University, Las Cruces, NM 88003, USA

3. USDA ARS, Southern Plains Agricultural Research Center, Pecan Breeding & Genetics, College Station, TX 77845, USA

4. Department of Horticulture, University of Georgia-Tifton Campus, Tifton, GA 31793, USA

5. USDA ARS, Southeastern Fruit and Tree Nut Research Station, Byron, GA 31008, USA

Abstract

Carya illinoinensis (Wangenh.) K.Koch production has expanded beyond the native distribution as the genetic diversity of the species, in part, has allowed the trees to grow under broad geographic and climatic ranges. Research in other plant species has demonstrated that the phytobiome enhances their ability to survive and thrive in specific environments and, conversely, is influenced by the prevailing environment and plant genetics, among other factors. We sought to analyze the microbiota of pecan seedlings from the controlled cross ‘Lakota’ × ‘Oaxaca’ that were made in Georgia and Texas, respectively, to determine if the maternal geographical origin influences the microbiome of the resulting progeny. No significant differences in bacterial communities were observed between the seeds obtained from the two different states (p = 0.081). However, seed origin did induce significant differences in leaf fungal composition (p = 0.012). Results suggest that, in addition to some environmental, epigenetics, or host genetic components, ecological processes, such as dispersal mechanisms of the host, differentially impact the pecan microbiome, which may have ramifications for the health of trees grown in different environments. Future studies on the role of the microbiome in plant health and productivity will aid in the development of sustainable agriculture for improved food security.

Funder

National Institute of Food and Agriculture

Publisher

MDPI AG

Subject

Plant Science,Ecology,Ecology, Evolution, Behavior and Systematics

Reference60 articles.

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2. Carya illinoensis (Wangenh.) K. Koch pecan;Peterson;Silv. N. A.,1990

3. Pecan seed stock selection—Regional implications;Grauke;Proc. SE Pecan Grow. Assoc.,2010

4. Pecans and hickories;Janick;Fruit Breeding,1996

5. Four chromosome scale genomes and a pan-genome annotation to accelerate pecan tree breeding;Lovell;Nat. Commun.,2021

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