Abstract
The assessment of genetic diversity is crucial in citrus improvement programs that represents the relationship among genotypes, thus determining an effective plant breeding program. A molecular assessment of 52 collected citrus accessions based on ISSR and SSR was conducted at the ICSFRI in 2020. Based on 4 ISSR primers and 3 SSR primers, the citrus genotypes were grouped into 6 major clusters. Cluster I has the largest 25 members, while Cluster II, III, IV, V and VI have 5, 2, 2, 4 and 13 accession members, respectively. Members of Cluster I are the majority in the mandarin type with spheroids fruit shape with truncate on the fruit top. Cluster II contains citrus accessions from naturally occurring hybrids, while orange accession members of Cluster III are originally grown in different climates. Cluster IV and V members are connected to a common ancestor, Citrus aurantifolia and Citrus limonia . At the same time, Cluster VI is a pumelo group that contains members of Citrus maxima . Clustering based on molecular markers (ISSR and SSR) resulting in this study is useful in citrus breeding programs in Indonesia and other countries. The genetic distance of the parents affects the heterosis effect of the progeny.
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Claims 8
Claim · model-written summary
The citrus accessions formed six major ISSR and SSR clusters.
CitrusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on 4 ISSR primers and 3 SSR primers, the citrus genotypes were grouped into 6 major clusters.”
Claim · model-written summary
Cluster I had 25 members, predominantly mandarin types with spheroid fruit and a truncate top.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cluster I has the largest 25 members, while Cluster II, III, IV, V and VI have 5, 2, 2, 4 and 13 accession members, respectively. Members of Cluster I are the majority in the mandarin type with spheroids fruit shape with truncate on the fruit top.”
t0“Citrus Accessions”
Claim · model-written summary
Cluster II had five accessions from naturally occurring citrus hybrids.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cluster II, III, IV, V and VI have 5, 2, 2, 4 and 13 accession members, respectively. Members of Cluster I are the majority in the mandarin type with spheroids fruit shape with truncate on the fruit top. Cluster II contains citrus accessions from naturally occurring hybrids”
Claim · model-written summary
Cluster III had two orange accessions grown in different climates.
- Material
- orangee0
- Outcome
- orange accession members of Cluster III are originally grown in different climatese0
- Value
- 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cluster II, III, IV, V and VI have 5, 2, 2, 4 and 13 accession members, respectively. Members of Cluster I are the majority in the mandarin type with spheroids fruit shape with truncate on the fruit top. Cluster II contains citrus accessions from naturally occurring hybrids, while orange accession members of Cluster III are originally grown in different climates.”
Claim · model-written summary
Clusters IV and V had two and four accessions and shared ancestry with Citrus aurantifolia and Citrus limonia.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cluster II, III, IV, V and VI have 5, 2, 2, 4 and 13 accession members, respectively. Members of Cluster I are the majority in the mandarin type with spheroids fruit shape with truncate on the fruit top. Cluster II contains citrus accessions from naturally occurring hybrids, while orange accession members of Cluster III are originally grown in different climates. Cluster IV and V members are connected to a common ancestor, Citrus aurantifolia and Citrus limonia”
Claim · model-written summary
Cluster VI was a pumelo group containing Citrus maxima.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cluster VI is a pumelo group that contains members of Citrus maxima”
Claim · model-written summary
The ISSR and SSR clustering was considered useful for citrus breeding.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Clustering based on molecular markers (ISSR and SSR) resulting in this study is useful in citrus breeding programs in Indonesia and other countries.”
Claim · model-written summary
The authors state that parental genetic distance affects progeny heterosis.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The genetic distance of the parents affects the heterosis effect of the progeny.”
t0“Citrus Accessions”