­ Selected sampling stations in Azerbaijan districts. The type climate and of soil of each district is reported. The pomegranate accession harvested in each area are also indicated on the map.

Contexts in source publication

Context 1

... ripe pomegranate (Punica granatum L.) fruits were collected from seven districts of Azerbaijan. Geographical coordinates and altitude corresponding to each surveyed area are shown in (Fig. 1 and Table S1). The soil of the different areas was analyzed. Pomegranate fruits were collected at the same maturity stage from of 25 th September and October 2 nd 2018 during a field campaign extensively described in a companion paper (Zeynalova et al., 2019). Each accession sample (Pg) was the pool of three fruits from three different ...

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... from temperate warm climate (Gokchay, Ismailly) to semidesert dry steppes with hot summer (Agsu, Khizi). The sampling area were located at dif­ ferent altitude, ranging from 60 m (Yevlak) to 540 m (Ismailli). In the Agsu district two accessions were collected, one accession in the Agsu mountaın pass, whereas the other accession at 190 m a.s.l. (Fig. ...

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... quantitative and qualitative anthocyanin variations among the accessions might be related to the environmental conditions during the ripening period, as well as the to genotype adaptation mechanisms to the growing area (Fig. 1). Borochov­ Neori et al. (2011Neori et al. ( , 2014) reported an increment in diglucosylated anthocyanins after seasonal warming, and our data may concurr to suggest a correlation between high level of the anthocynain diglucosides and hot summer. Indeed, Pg 1 and Pg 2, which can be found in dry regions characterized by hot summers, ...

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... the accessions collected in eight different areas of Azerbaijan allowed to select promising wild pomegranate accession particularly rich both in anthocyanins and ellagitannins. Among the investigat­ ed accessions, Pg 1 resulted the richest both in antho­ cyanins and hydrolysable tannins, particularly in puni­ calagin derivatives (Table 1­2 and Fig. S1). In this accession, collected in the region of Khizi, character­ ized by hot summer and cold winter but partially miti­ gated by its proximity to the Caspian Sea, the interac­ tion between environmental conditions and the geno­ type induces the accumulation of both more stable anthocyanins, such as del­3,5­diglc and cya­3,5­digl, and ...

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... environmental conditions and the geno­ type induces the accumulation of both more stable anthocyanins, such as del­3,5­diglc and cya­3,5­digl, and different punicalagin derivatives. Similar anthocyanin composition was also found in Pg 2, which however showed an unbalalanced composotion because of the very low amount of tannins (Table 1­2 and Fig. S1). Indeed, the accumulation of both classes of polyphenols can be stimulated under warming conditions, but also somehow drastically reduced under prolonged and severe drought conditions (Mena et al., 2013). A PCA biplot was applied to highlight the correlations between the contents of phenolic compounds of various accession fruits (Fig. ...

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... PC2 allows to discriminate accessions on the basis of their tannin content, and it clearly shows the presence of three different groups: the richest accession (Pg1), accessions with similar tannin content (Pg 3,4,5,6,7) and the lowest accessions (Pg 2 and Pg 8). The accessions Pg 3,4,5,6,7 have a more balanced content of anthocyanins and tannins (Fig. S1). However, also among these accessions, environmental influences can be osbserved considering the accessions Pg 5, 6, 7, which have been collected in areas with hot summer conditions and salinity soils and result to have higher anthocyanin and punicalagin contents compared to Pg 3 and Pg 4 (Table 1, 2 and S1). By contrast, these latest ...