I have a file with hundreds of rows:

```
Chr01:19967945-19972643 HanXRQChr01g0004001 1   4698    4698    0.0 8676    100.000 locus_tag=HanXRQChr01g0004001 gn=HanXRQChr01g0004001 begin=19967815 end=19972682 len=4868 chr=HanXRQChr01 strand=-1 sp=Helianthus annuus def=Probable protein kinase superfamily protein
Chr01:23001231-23011701 HanXRQChr01g0004391 1   10470   10470   0.0 19335   100.000 locus_tag=HanXRQChr01g0004391 gn=HanXRQChr01g0004391 begin=22999643 end=23012645 len=13003 chr=HanXRQChr01 strand=1 sp=Helianthus annuus def=Putative squalene cyclase; Squalene cyclase, C-terminal; Squalene cyclase, N-terminal
Chr01:23001231-23011701 HanXRQChr01g0004391 5938    6078    141 7.25e-55    220 95.035  locus_tag=HanXRQChr01g0004391 gn=HanXRQChr01g0004391 begin=22999643 end=23012645 len=13003 chr=HanXRQChr01 strand=1 sp=Helianthus annuus def=Putative squalene cyclase; Squalene cyclase, C-terminal; Squalene cyclase, N-terminal
Chr01:38759426-38779934 HanXRQChr01g0005671 1   20472   20472   0.0 37805   100.000 locus_tag=HanXRQChr01g0005671 gn=SPI begin=38759245 end=38779898 len=20654 chr=HanXRQChr01 strand=1 sp=Helianthus annuus def=Probable beige/BEACH domain ;WD domain, G-beta repeat protein
Chr01:38759426-38779934 HanXRQChr15g0474141 7163    7204    42  1.96e-08    67.6    95.238  locus_tag=HanXRQChr15g0474141 gn=IQD29 begin=37205639 end=37211555 len=5917 chr=HanXRQChr15 strand=-1 sp=Helianthus annuus def=Probable IQ-domain 29
Chr01:38759426-38779934 HanXRQChr15g0474141 7003    7043    41  7.05e-08    65.8    95.122  locus_tag=HanXRQChr15g0474141 gn=IQD29 begin=37205639 end=37211555 len=5917 chr=HanXRQChr15 strand=-1 sp=Helianthus annuus def=Probable IQ-domain 29

```

Some of these rows are unique based on the first column, like the first row `Chr01:19967945-1997264`, and for some others I have multiple rows based on the first column like `Chr01:23001231-23011701`.

For each value in the first column, I want to keep only the first row because the first row contains the best values for some other parameters in columns 6 and 7 and 8.

My desired output would be 

```
Chr01:19967945-19972643 HanXRQChr01g0004001 1   4698    4698    0.0 8676    100.000 locus_tag=HanXRQChr01g0004001 gn=HanXRQChr01g0004001 begin=19967815 end=19972682 len=4868 chr=HanXRQChr01 strand=-1 sp=Helianthus annuus def=Probable protein kinase superfamily protein
Chr01:23001231-23011701 HanXRQChr01g0004391 1   10470   10470   0.0 19335   100.000 locus_tag=HanXRQChr01g0004391 gn=HanXRQChr01g0004391 begin=22999643 end=23012645 len=13003 chr=HanXRQChr01 strand=1 sp=Helianthus annuus def=Putative squalene cyclase; Squalene cyclase, C-terminal; Squalene cyclase, N-terminal
Chr01:38759426-38779934 HanXRQChr01g0005671 1   20472   20472   0.0 37805   100.000 locus_tag=HanXRQChr01g0005671 gn=SPI begin=38759245 end=38779898 len=20654 chr=HanXRQChr01 strand=1 sp=Helianthus annuus def=Probable beige/BEACH domain ;WD domain, G-beta repeat protein

```