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Association genetics of chilling injury susceptibility in peach (Prunus persica (L.) Batsch) across multiple years.

Abstract：

:Peach and nectarine (Prunus persica L.) are highly perishable; they ripen and deteriorate quickly at ambient temperature. Storage at low temperature (0-5 °C) is a common strategy used to slow the ripening processes and to extend shelf life. However, if susceptible varieties are held too long at a low temperature, they will not ripen properly and will develop chilling injury (CI) symptoms like mealiness (M), flesh browning (FB), and flesh bleeding (FBL). Understanding the genetic control of these traits to produce CI resistant cultivars will greatly benefit producers, shippers and consumers. In this study, we evaluated a population of 51 individuals from Pop-DG across 4 years with CI traits observed in one or two time points to detect molecular marker association with selected 960 single-nucleotide polymorphisms (SNPs) from 1,536 SNPs chip. Genotypic and phenotypic data were analyzed by general linear model and mixed linear model to see comparative results from both analyses. Among 960 SNPs used, 22 SNPs were found associated with CI susceptibility traits like M, FB, and FBL. Many SNP markers were located in or close to previously reported quantitative trait loci mapped by linkage analysis.

journal_name

3 Biotech

journal_title

3 Biotech

authors

Dhanapal AP,Crisosto CH

doi

10.1007/s13205-012-0109-x

subject

Has Abstract

pub_date

2013-12-01 00:00:00

pages

481-490

issue

6

eissn

2190-572X

issn

2190-5738

pii

10.1007/s13205-012-0109-x

journal_volume

3

pub_type

杂志文章

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