Next Article in Journal
Start Clean, Stay Clean
Previous Article in Journal
C-28 Esters of Triterpenoid Acids Bearing Tris(hydroxymethyl)aminomethane: Synthesis and Anticancer/Antimicrobial Activity
Abstract

Phylogenetic Relationship among Macadamia integrifolia and Macadamia tetraphylla Wild Accessions

Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane 4072, Australia
*
Author to whom correspondence should be addressed.
Presented at the third International Tropical Agriculture Conference (TROPAG 2019), Brisbane, Australia, 11–13 November 2019.
Proceedings 2019, 36(1), 67; https://doi.org/10.3390/proceedings2019036067
Published: 19 January 2020
(This article belongs to the Proceedings of The Third International Tropical Agriculture Conference (TROPAG 2019))
Two of Australia’s endemic rainforest species, Macadamia integrifolia and M. tetraphylla, produce edible nuts with high-value kernel. The majority of commercial varieties are based on the limited gene pool of M. integrifolia and hybrids between M. integrifolia and M. tetraphylla. An understanding of the existing genetic diversity within the species can be utilized for future genetic improvement. Aiming to identify the genetic diversity, we conducted phylogenetic analyses of 98 wild accessions of M. integrifolia collected from 23 population sites, and 94 accessions of M. tetraphylla from 21 sites using 2,872 high-quality DArTseq-based SNP markers. The phylogenetic tree clearly distinguished clades of the two species. Within species, most of the accessions from the same population clustered together. Genetic and geographic distances among M. integrifolia populations were positively correlated (r = 0.26, p = 0.01), whereas the correlation was poor and not significant among M. tetraphylla populations (r = 0.08, p = 0.13). The relationship between genetic and geographic distance allows evaluating the relative influences of gene flow and drift on population structure within and between regions.
MDPI and ACS Style

Mai, T.T.P.; Alam, M.; Henry, R.; Hardner, C.; Topp, B. Phylogenetic Relationship among Macadamia integrifolia and Macadamia tetraphylla Wild Accessions. Proceedings 2019, 36, 67. https://doi.org/10.3390/proceedings2019036067

AMA Style

Mai TTP, Alam M, Henry R, Hardner C, Topp B. Phylogenetic Relationship among Macadamia integrifolia and Macadamia tetraphylla Wild Accessions. Proceedings. 2019; 36(1):67. https://doi.org/10.3390/proceedings2019036067

Chicago/Turabian Style

Mai, Thuy Thi Phuong, Mobashwer Alam, Robert Henry, Craig Hardner, and Bruce Topp. 2019. "Phylogenetic Relationship among Macadamia integrifolia and Macadamia tetraphylla Wild Accessions" Proceedings 36, no. 1: 67. https://doi.org/10.3390/proceedings2019036067

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop