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‘北仑02-1’是在浙江省宁波市北仑区白峰镇一桃园中发现的大果型早熟水蜜桃变异株系。为了鉴别这个株系,对它的主要物候期和果实品质特性进行研究,并用分子标记技术比较‘北仑02-1’与当地栽培品种‘早红宝石’、‘大团蜜露’、‘湖景蜜露’、‘玉露’、‘迟玉露’、‘大玉白凤’遗传特征的异同。结果表明:‘北仑02-1’在当地的成熟期为6月20日左右,果型较大,平均单果质量达196g,果顶红色鲜艳,品质优良。SSR标记分析结果发现‘北仑02-1’不同于‘湖景蜜露’、‘大团蜜露’和‘玉露’,位于桃第6连锁群的SSR标记pchcms5可用于区分‘北仑02-1’和‘湖景蜜露’。所用的24对AFLP引物组合中,有3对可以分辨‘北仑02-1’和‘湖景蜜露’。研究表明‘北仑02-1’与当地栽培品种存在遗传差异,可能是变异新株系。
’Beilun 02-1’ is a large fruit-type early-maturing peach mutation strain found in a Taoyuan Garden, Bai Feng Town, Beilun District, Ningbo City, Zhejiang Province. In order to identify this line, its main phenology and fruit quality characteristics were studied, and molecular markers were used to compare ’Beilun 02-1’ with the local cultivars’ Early Ruby ’,’ Large Group of Honeydew ’,’ Lake View Honey Lu ’,’ Yu Lu ’,’ Chi Yulu ’,’ Big Yufeng ’genetic characteristics of the similarities and differences. The results showed that ’Beilun 02-1’ had a mature maturity of about June 20, with a large fruit shape and an average fruit weight of 196g. The fruit tops were bright red with good quality. The SSR marker analysis showed that ’Beilun 02-1’ was different from ’Lake View Honeydew’, ’Big Honeydew’ and ’Yulu’ and the SSR marker pchcms5 located in the sixth linkage group of peach trees could be used to distinguish ’Beilun 02-1’ And ’lake view nectar’. Of the 24 pairs of AFLP primer combinations used, three pairs resolved Beiren 02-1 and Lakeview Honeydew. Studies show that there is a genetic difference between ’Beilun 02-1’ and local cultivars, which may be a new variant of the strain.