Molecular Characterization of Tomato (Solanum lycopersicum L.) Accessions under Drought Stress

نویسندگان

چکیده

Exploring the genetic diversity among plant accessions is important for conserving and managing resources. In current study, a collection of forty-six tomato from Jordan were evaluated based on their performance morpho-physiological, in addition to molecularly characterizing detect diversity. Tomato seedlings exposed drought stress with 70% field capacity 40% under conditions Jordan. Drought had significantly negatively influenced dry root weight, fresh growth rate, shoot rate. Moreover, proline content showed highly significant increase 304.2% response stress. The analysis twenty morphological characters revealed wide range variations accessions. Accessions screened fourteen SSR primers; six primers informative explain Based resolving power, LEct004 LEat018 most all 46 Interestingly, polymorphic information (PIC) values ranged 0.00 (Asr2 marker) 0.499 (LEct004), which confirms that markers are informative. Our findings provide new insights into using molecular elucidate such variation discovered our collections Afraa Abeel (the southern part Jordan). associated genes, e.g., ACTIN_RELATED PROTEIN gene, HOMEOBOX TRANSCRIPTION FACTORS Asr2 ABA/WDS. AUXIN RESPONSE FACTOR8 gene was LEta014 marker LEta020 THIOREDOXIN FAMILY TRP26 gene. Therefore, functional annotations genes obtained this study valuable about suitable genotype can be implemented breeding programs future analysis. Furthermore, evaluating different water regimes essential produce varieties coping conditions.

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ژورنال

عنوان ژورنال: Horticulturae

سال: 2022

ISSN: ['2311-7524']

DOI: https://doi.org/10.3390/horticulturae8070600